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Finding the Fourth Proportional to 637.38, 954.44 and 519.72

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Solution

The fourth proportional to 637.38, 954.44 and 519.72 is: 778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.38 : 954.44 = 519.72 : x
  2. Step 2: Convert to fraction form
    637.38/954.44 = 519.72/x
  3. Step 3: Cross multiply
    637.38x = 954.44 × 519.72
  4. Step 4: Simplify right side
    637.38x = 496,041.56
  5. Step 5: Solve for x
    x = 496,041.56/637.38
  6. Step 6: Final answer
    x = 778.25

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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.