Finding the Fourth Proportional to 719,062.64, 992,305.68 and 396,772.64
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Solution
The fourth proportional to 719,062.64, 992,305.68 and 396,772.64 is: 547,545.82
Step by Step Solution
- Step 1: Write the proportion equation
719,062.64 : 992,305.68 = 396,772.64 : x - Step 2: Convert to fraction form
719,062.64/992,305.68 = 396,772.64/x - Step 3: Cross multiply
719,062.64x = 992,305.68 × 396,772.64 - Step 4: Simplify right side
719,062.64x = 393,719,744,340.60 - Step 5: Solve for x
x = 393,719,744,340.60/719,062.64 - Step 6: Final answer
x = 547,545.82
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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.