Finding the Fourth Proportional to 664,538.10, 996,807.15 and 412,595.70
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Solution
The fourth proportional to 664,538.10, 996,807.15 and 412,595.70 is: 618,893.55
Step by Step Solution
- Step 1: Write the proportion equation
664,538.10 : 996,807.15 = 412,595.70 : x - Step 2: Convert to fraction form
664,538.10/996,807.15 = 412,595.70/x - Step 3: Cross multiply
664,538.10x = 996,807.15 × 412,595.70 - Step 4: Simplify right side
664,538.10x = 411,278,343,819.26 - Step 5: Solve for x
x = 411,278,343,819.26/664,538.10 - Step 6: Final answer
x = 618,893.55
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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.