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Finding the Fourth Proportional to 636.04, 951.18 and 628.12

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Solution

The fourth proportional to 636.04, 951.18 and 628.12 is: 939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.04 : 951.18 = 628.12 : x
  2. Step 2: Convert to fraction form
    636.04/951.18 = 628.12/x
  3. Step 3: Cross multiply
    636.04x = 951.18 × 628.12
  4. Step 4: Simplify right side
    636.04x = 597,455.18
  5. Step 5: Solve for x
    x = 597,455.18/636.04
  6. Step 6: Final answer
    x = 939.34

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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.