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Finding the Fourth Proportional to 627, 939.52 and 444.75

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Solution

The fourth proportional to 627, 939.52 and 444.75 is: 666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    627 : 939.52 = 444.75 : x
  2. Step 2: Convert to fraction form
    627/939.52 = 444.75/x
  3. Step 3: Cross multiply
    627x = 939.52 × 444.75
  4. Step 4: Simplify right side
    627x = 417,851.52
  5. Step 5: Solve for x
    x = 417,851.52/627
  6. Step 6: Final answer
    x = 666.43

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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.