Home / 498,467.85-747,701.78-288,515.85

Finding the Fourth Proportional to 498,467.85, 747,701.78 and 288,515.85

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Solution

The fourth proportional to 498,467.85, 747,701.78 and 288,515.85 is: 432,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,467.85 : 747,701.78 = 288,515.85 : x
  2. Step 2: Convert to fraction form
    498,467.85/747,701.78 = 288,515.85/x
  3. Step 3: Cross multiply
    498,467.85x = 747,701.78 × 288,515.85
  4. Step 4: Simplify right side
    498,467.85x = 215,723,813,160.63
  5. Step 5: Solve for x
    x = 215,723,813,160.63/498,467.85
  6. Step 6: Final answer
    x = 432,773.78

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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.