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Finding the Fourth Proportional to 549.74, 817.53 and 532.43

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Solution

The fourth proportional to 549.74, 817.53 and 532.43 is: 791.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.74 : 817.53 = 532.43 : x
  2. Step 2: Convert to fraction form
    549.74/817.53 = 532.43/x
  3. Step 3: Cross multiply
    549.74x = 817.53 × 532.43
  4. Step 4: Simplify right side
    549.74x = 435,273.41
  5. Step 5: Solve for x
    x = 435,273.41/549.74
  6. Step 6: Final answer
    x = 791.79

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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.