You need a combo chart - as attached.
I just put a 2nd copy of the APPROVAL_RATE measure on the Rows shelf, then on the Marks pane said that I wanted Multiple Marks. For one measure I put Status on the Color shelf, for the other one I didn't (but I changed the colour to red).
I also had to select the Dual Axis and Synchronize Axis options for the y-axis.
Have a look in online help or search the forums or the knowledgebase for more help on combo charts.
here is a demonstration of another option that gives you a nice legend:
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Thank you Joe and Richard. Very informative.