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Finding the Fourth Proportional to 437,553.60, 656,330.40 and 400,155.90

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Solution

The fourth proportional to 437,553.60, 656,330.40 and 400,155.90 is: 600,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,553.60 : 656,330.40 = 400,155.90 : x
  2. Step 2: Convert to fraction form
    437,553.60/656,330.40 = 400,155.90/x
  3. Step 3: Cross multiply
    437,553.60x = 656,330.40 × 400,155.90
  4. Step 4: Simplify right side
    437,553.60x = 262,634,481,909.36
  5. Step 5: Solve for x
    x = 262,634,481,909.36/437,553.60
  6. Step 6: Final answer
    x = 600,233.85

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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.