Finding the Fourth Proportional to 1,125,691.38, 1,553,455.10 and 609,445.62
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Solution
The fourth proportional to 1,125,691.38, 1,553,455.10 and 609,445.62 is: 841,035.50
Step by Step Solution
- Step 1: Write the proportion equation
1,125,691.38 : 1,553,455.10 = 609,445.62 : x - Step 2: Convert to fraction form
1,125,691.38/1,553,455.10 = 609,445.62/x - Step 3: Cross multiply
1,125,691.38x = 1,553,455.10 × 609,445.62 - Step 4: Simplify right side
1,125,691.38x = 946,746,408,085.28 - Step 5: Solve for x
x = 946,746,408,085.28/1,125,691.38 - Step 6: Final answer
x = 841,035.50
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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.