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Finding the Fourth Proportional to 437,473.20, 656,209.80 and 279,231.60

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Solution

The fourth proportional to 437,473.20, 656,209.80 and 279,231.60 is: 418,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,473.20 : 656,209.80 = 279,231.60 : x
  2. Step 2: Convert to fraction form
    437,473.20/656,209.80 = 279,231.60/x
  3. Step 3: Cross multiply
    437,473.20x = 656,209.80 × 279,231.60
  4. Step 4: Simplify right side
    437,473.20x = 183,234,512,389.68
  5. Step 5: Solve for x
    x = 183,234,512,389.68/437,473.20
  6. Step 6: Final answer
    x = 418,847.40

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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.