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Finding the Fourth Proportional to 626.89, 939.30 and 602.88

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Solution

The fourth proportional to 626.89, 939.30 and 602.88 is: 903.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.89 : 939.30 = 602.88 : x
  2. Step 2: Convert to fraction form
    626.89/939.30 = 602.88/x
  3. Step 3: Cross multiply
    626.89x = 939.30 × 602.88
  4. Step 4: Simplify right side
    626.89x = 566,285.18
  5. Step 5: Solve for x
    x = 566,285.18/626.89
  6. Step 6: Final answer
    x = 903.33

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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.