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Finding the Fourth Proportional to 633.59, 948.56 and 402.74

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Solution

The fourth proportional to 633.59, 948.56 and 402.74 is: 602.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.59 : 948.56 = 402.74 : x
  2. Step 2: Convert to fraction form
    633.59/948.56 = 402.74/x
  3. Step 3: Cross multiply
    633.59x = 948.56 × 402.74
  4. Step 4: Simplify right side
    633.59x = 382,016.30
  5. Step 5: Solve for x
    x = 382,016.30/633.59
  6. Step 6: Final answer
    x = 602.94

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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.