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Finding the Fourth Proportional to 629.61, 938.03 and 598.63

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Solution

The fourth proportional to 629.61, 938.03 and 598.63 is: 891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.61 : 938.03 = 598.63 : x
  2. Step 2: Convert to fraction form
    629.61/938.03 = 598.63/x
  3. Step 3: Cross multiply
    629.61x = 938.03 × 598.63
  4. Step 4: Simplify right side
    629.61x = 561,532.90
  5. Step 5: Solve for x
    x = 561,532.90/629.61
  6. Step 6: Final answer
    x = 891.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.