Finding the Fourth Proportional to 724,944,452.96, 1,087,958,232.64 and 491,220,982.24
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Solution
The fourth proportional to 724,944,452.96, 1,087,958,232.64 and 491,220,982.24 is: 737,198,428.78
Step by Step Solution
- Step 1: Write the proportion equation
724,944,452.96 : 1,087,958,232.64 = 491,220,982.24 : x - Step 2: Convert to fraction form
724,944,452.96/1,087,958,232.64 = 491,220,982.24/x - Step 3: Cross multiply
724,944,452.96x = 1,087,958,232.64 × 491,220,982.24 - Step 4: Simplify right side
724,944,452.96x = 534,427,911,673,515,264 - Step 5: Solve for x
x = 534,427,911,673,515,264/724,944,452.96 - Step 6: Final answer
x = 737,198,428.78
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Half scale
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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.