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Finding the Fourth Proportional to 626.33, 939.50 and 587.86

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Solution

The fourth proportional to 626.33, 939.50 and 587.86 is: 881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.33 : 939.50 = 587.86 : x
  2. Step 2: Convert to fraction form
    626.33/939.50 = 587.86/x
  3. Step 3: Cross multiply
    626.33x = 939.50 × 587.86
  4. Step 4: Simplify right side
    626.33x = 552,294.47
  5. Step 5: Solve for x
    x = 552,294.47/626.33
  6. Step 6: Final answer
    x = 881.79

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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.