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Finding the Fourth Proportional to 486,951.40, 730,427.10 and 449,626.60

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Solution

The fourth proportional to 486,951.40, 730,427.10 and 449,626.60 is: 674,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,951.40 : 730,427.10 = 449,626.60 : x
  2. Step 2: Convert to fraction form
    486,951.40/730,427.10 = 449,626.60/x
  3. Step 3: Cross multiply
    486,951.40x = 730,427.10 × 449,626.60
  4. Step 4: Simplify right side
    486,951.40x = 328,419,453,520.86
  5. Step 5: Solve for x
    x = 328,419,453,520.86/486,951.40
  6. Step 6: Final answer
    x = 674,439.90

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Similar ratio
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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.