Home / 437,732.20-656,598.30-280,138.60

Finding the Fourth Proportional to 437,732.20, 656,598.30 and 280,138.60

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Solution

The fourth proportional to 437,732.20, 656,598.30 and 280,138.60 is: 420,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,732.20 : 656,598.30 = 280,138.60 : x
  2. Step 2: Convert to fraction form
    437,732.20/656,598.30 = 280,138.60/x
  3. Step 3: Cross multiply
    437,732.20x = 656,598.30 × 280,138.60
  4. Step 4: Simplify right side
    437,732.20x = 183,938,528,524.38
  5. Step 5: Solve for x
    x = 183,938,528,524.38/437,732.20
  6. Step 6: Final answer
    x = 420,207.90

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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.