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Finding the Fourth Proportional to 622.28, 932.56 and 549.03

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Solution

The fourth proportional to 622.28, 932.56 and 549.03 is: 822.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.28 : 932.56 = 549.03 : x
  2. Step 2: Convert to fraction form
    622.28/932.56 = 549.03/x
  3. Step 3: Cross multiply
    622.28x = 932.56 × 549.03
  4. Step 4: Simplify right side
    622.28x = 512,003.38
  5. Step 5: Solve for x
    x = 512,003.38/622.28
  6. Step 6: Final answer
    x = 822.78

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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.