Finding the Fourth Proportional to 718,549.92, 991,585.80 and 396,289.80
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Solution
The fourth proportional to 718,549.92, 991,585.80 and 396,289.80 is: 546,872.70
Step by Step Solution
- Step 1: Write the proportion equation
718,549.92 : 991,585.80 = 396,289.80 : x - Step 2: Convert to fraction form
718,549.92/991,585.80 = 396,289.80/x - Step 3: Cross multiply
718,549.92x = 991,585.80 × 396,289.80 - Step 4: Simplify right side
718,549.92x = 392,955,338,364.84 - Step 5: Solve for x
x = 392,955,338,364.84/718,549.92 - Step 6: Final answer
x = 546,872.70
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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.