Finding the Fourth Proportional to 664,358.70, 996,538.05 and 487,211.70
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Solution
The fourth proportional to 664,358.70, 996,538.05 and 487,211.70 is: 730,817.55
Step by Step Solution
- Step 1: Write the proportion equation
664,358.70 : 996,538.05 = 487,211.70 : x - Step 2: Convert to fraction form
664,358.70/996,538.05 = 487,211.70/x - Step 3: Cross multiply
664,358.70x = 996,538.05 × 487,211.70 - Step 4: Simplify right side
664,358.70x = 485,524,997,455.19 - Step 5: Solve for x
x = 485,524,997,455.19/664,358.70 - Step 6: Final answer
x = 730,817.55
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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.