Finding the Fourth Proportional to 719,062.86, 992,305.58 and 396,772.70
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Solution
The fourth proportional to 719,062.86, 992,305.58 and 396,772.70 is: 547,545.68
Step by Step Solution
- Step 1: Write the proportion equation
719,062.86 : 992,305.58 = 396,772.70 : x - Step 2: Convert to fraction form
719,062.86/992,305.58 = 396,772.70/x - Step 3: Cross multiply
719,062.86x = 992,305.58 × 396,772.70 - Step 4: Simplify right side
719,062.86x = 393,719,764,201.67 - Step 5: Solve for x
x = 393,719,764,201.67/719,062.86 - Step 6: Final answer
x = 547,545.68
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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.