Home / 437,839.40-656,759.10-288,248.60

Finding the Fourth Proportional to 437,839.40, 656,759.10 and 288,248.60

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Solution

The fourth proportional to 437,839.40, 656,759.10 and 288,248.60 is: 432,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,839.40 : 656,759.10 = 288,248.60 : x
  2. Step 2: Convert to fraction form
    437,839.40/656,759.10 = 288,248.60/x
  3. Step 3: Cross multiply
    437,839.40x = 656,759.10 × 288,248.60
  4. Step 4: Simplify right side
    437,839.40x = 189,309,891,112.26
  5. Step 5: Solve for x
    x = 189,309,891,112.26/437,839.40
  6. Step 6: Final answer
    x = 432,372.90

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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.