Finding the Fourth Proportional to 4,887,414.30, 7,331,121.45 and 4,572,486.30
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Solution
The fourth proportional to 4,887,414.30, 7,331,121.45 and 4,572,486.30 is: 6,858,729.45
Step by Step Solution
- Step 1: Write the proportion equation
4,887,414.30 : 7,331,121.45 = 4,572,486.30 : x - Step 2: Convert to fraction form
4,887,414.30/7,331,121.45 = 4,572,486.30/x - Step 3: Cross multiply
4,887,414.30x = 7,331,121.45 × 4,572,486.30 - Step 4: Simplify right side
4,887,414.30x = 33,521,452,393,761.13 - Step 5: Solve for x
x = 33,521,452,393,761.13/4,887,414.30 - Step 6: Final answer
x = 6,858,729.45
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.