Finding the Fourth Proportional to 875,337.20, 1,207,964.16 and 472,929.20
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Solution
The fourth proportional to 875,337.20, 1,207,964.16 and 472,929.20 is: 652,641.66
Step by Step Solution
- Step 1: Write the proportion equation
875,337.20 : 1,207,964.16 = 472,929.20 : x - Step 2: Convert to fraction form
875,337.20/1,207,964.16 = 472,929.20/x - Step 3: Cross multiply
875,337.20x = 1,207,964.16 × 472,929.20 - Step 4: Simplify right side
875,337.20x = 571,281,523,817.47 - Step 5: Solve for x
x = 571,281,523,817.47/875,337.20 - Step 6: Final answer
x = 652,641.66
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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.