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Finding the Fourth Proportional to 637.20, 950.76 and 622.44

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Solution

The fourth proportional to 637.20, 950.76 and 622.44 is: 928.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.20 : 950.76 = 622.44 : x
  2. Step 2: Convert to fraction form
    637.20/950.76 = 622.44/x
  3. Step 3: Cross multiply
    637.20x = 950.76 × 622.44
  4. Step 4: Simplify right side
    637.20x = 591,791.05
  5. Step 5: Solve for x
    x = 591,791.05/637.20
  6. Step 6: Final answer
    x = 928.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.