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Finding the Fourth Proportional to 634.97, 950.96 and 415.46

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Solution

The fourth proportional to 634.97, 950.96 and 415.46 is: 622.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.97 : 950.96 = 415.46 : x
  2. Step 2: Convert to fraction form
    634.97/950.96 = 415.46/x
  3. Step 3: Cross multiply
    634.97x = 950.96 × 415.46
  4. Step 4: Simplify right side
    634.97x = 395,079.01
  5. Step 5: Solve for x
    x = 395,079.01/634.97
  6. Step 6: Final answer
    x = 622.21

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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.