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Finding the Fourth Proportional to 633.60, 949.32 and 556.92

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Solution

The fourth proportional to 633.60, 949.32 and 556.92 is: 834.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.60 : 949.32 = 556.92 : x
  2. Step 2: Convert to fraction form
    633.60/949.32 = 556.92/x
  3. Step 3: Cross multiply
    633.60x = 949.32 × 556.92
  4. Step 4: Simplify right side
    633.60x = 528,695.29
  5. Step 5: Solve for x
    x = 528,695.29/633.60
  6. Step 6: Final answer
    x = 834.43

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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.