Finding the Fourth Proportional to 1,275,695.92, 1,912,581.74 and 770,136.74
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Solution
The fourth proportional to 1,275,695.92, 1,912,581.74 and 770,136.74 is: 1,154,624.27
Step by Step Solution
- Step 1: Write the proportion equation
1,275,695.92 : 1,912,581.74 = 770,136.74 : x - Step 2: Convert to fraction form
1,275,695.92/1,912,581.74 = 770,136.74/x - Step 3: Cross multiply
1,275,695.92x = 1,912,581.74 × 770,136.74 - Step 4: Simplify right side
1,275,695.92x = 1,472,949,466,227.13 - Step 5: Solve for x
x = 1,472,949,466,227.13/1,275,695.92 - Step 6: Final answer
x = 1,154,624.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.