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Finding the Fourth Proportional to 631.88, 946.38 and 503.72

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Solution

The fourth proportional to 631.88, 946.38 and 503.72 is: 754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.88 : 946.38 = 503.72 : x
  2. Step 2: Convert to fraction form
    631.88/946.38 = 503.72/x
  3. Step 3: Cross multiply
    631.88x = 946.38 × 503.72
  4. Step 4: Simplify right side
    631.88x = 476,710.53
  5. Step 5: Solve for x
    x = 476,710.53/631.88
  6. Step 6: Final answer
    x = 754.43

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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.