Finding the Fourth Proportional to 574,976,452.90, 862,464,679.35 and 437,226,945.70
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Solution
The fourth proportional to 574,976,452.90, 862,464,679.35 and 437,226,945.70 is: 655,840,418.55
Step by Step Solution
- Step 1: Write the proportion equation
574,976,452.90 : 862,464,679.35 = 437,226,945.70 : x - Step 2: Convert to fraction form
574,976,452.90/862,464,679.35 = 437,226,945.70/x - Step 3: Cross multiply
574,976,452.90x = 862,464,679.35 × 437,226,945.70 - Step 4: Simplify right side
574,976,452.90x = 377,092,797,526,330,368 - Step 5: Solve for x
x = 377,092,797,526,330,368/574,976,452.90 - Step 6: Final answer
x = 655,840,418.55
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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.