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Finding the Fourth Proportional to 633.94, 949.91 and 417.04

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Solution

The fourth proportional to 633.94, 949.91 and 417.04 is: 624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.94 : 949.91 = 417.04 : x
  2. Step 2: Convert to fraction form
    633.94/949.91 = 417.04/x
  3. Step 3: Cross multiply
    633.94x = 949.91 × 417.04
  4. Step 4: Simplify right side
    633.94x = 396,150.47
  5. Step 5: Solve for x
    x = 396,150.47/633.94
  6. Step 6: Final answer
    x = 624.90

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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.