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Finding the Fourth Proportional to 636.24, 878.17 and 437.10

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Solution

The fourth proportional to 636.24, 878.17 and 437.10 is: 603.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.24 : 878.17 = 437.10 : x
  2. Step 2: Convert to fraction form
    636.24/878.17 = 437.10/x
  3. Step 3: Cross multiply
    636.24x = 878.17 × 437.10
  4. Step 4: Simplify right side
    636.24x = 383,850.94
  5. Step 5: Solve for x
    x = 383,850.94/636.24
  6. Step 6: Final answer
    x = 603.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.