Finding the Fourth Proportional to 719,472.92, 992,874.10 and 397,183.46
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Solution
The fourth proportional to 719,472.92, 992,874.10 and 397,183.46 is: 548,113.99
Step by Step Solution
- Step 1: Write the proportion equation
719,472.92 : 992,874.10 = 397,183.46 : x - Step 2: Convert to fraction form
719,472.92/992,874.10 = 397,183.46/x - Step 3: Cross multiply
719,472.92x = 992,874.10 × 397,183.46 - Step 4: Simplify right side
719,472.92x = 394,353,170,382.39 - Step 5: Solve for x
x = 394,353,170,382.39/719,472.92 - Step 6: Final answer
x = 548,113.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.