Home / 645,082.20-967,508.10-408,000.60

Finding the Fourth Proportional to 645,082.20, 967,508.10 and 408,000.60

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Solution

The fourth proportional to 645,082.20, 967,508.10 and 408,000.60 is: 611,928.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,082.20 : 967,508.10 = 408,000.60 : x
  2. Step 2: Convert to fraction form
    645,082.20/967,508.10 = 408,000.60/x
  3. Step 3: Cross multiply
    645,082.20x = 967,508.10 × 408,000.60
  4. Step 4: Simplify right side
    645,082.20x = 394,743,885,304.86
  5. Step 5: Solve for x
    x = 394,743,885,304.86/645,082.20
  6. Step 6: Final answer
    x = 611,928.04

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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.