HOW CAN i RESIZE THE COLUMN WIDTH OF ONE OF THE COLUMNS IN A QTABLEVIEW

Hi ladies and gents, I have a QTableView with 4 columns and I would like to permanently resize the second column to 50% the entire width of the QTableView. I thought this would be something easy to figure out but it has proven otherwise. I have attached a screenshot of what I am trying to achieve below. As can be seen in the screenshot below, the second column is 3-times longer than the first and the third column.Attachment 12655

Code:

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    ui->tableView->setColumnWidth(1, 900);
    model = new QStandardItemModel(74, 4, ui->innertabWidget);
    this->setWindowTitle("Tender Bot");
    QFile sitesFile("websites.txt");
    if(!sitesFile.open(QIODevice::ReadOnly | QIODevice::Text))
    {
        qDebug() << "Something went wrong, file did not open" <<endl;
    }
    else
    {
        QTextStream out(&sitesFile);
        int count = 0;
        while(!out.atEnd())
        {
            QModelIndex index = model->index(count, 0, QModelIndex());
            model->setData(index, sitesFile.readLine(0).simplified());
            count++;
        }
    }
    model->setHeaderData(0, Qt::Horizontal, "Websites");
    model->setHeaderData(1, Qt::Horizontal, "Downloaded");
    model->setHeaderData(2, Qt::Horizontal, "Date");
    model->setHeaderData(3, Qt::Horizontal, "Buttons");
    ui->tableView->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
    ui->tableView->setModel(model);
}

I thought line 6 in the code snippet above would achieve my desired outcome but it doesn't work.

Please assist.