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Finding the Fourth Proportional to 549.70, 817.48 and 532.39

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Solution

The fourth proportional to 549.70, 817.48 and 532.39 is: 791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.70 : 817.48 = 532.39 : x
  2. Step 2: Convert to fraction form
    549.70/817.48 = 532.39/x
  3. Step 3: Cross multiply
    549.70x = 817.48 × 532.39
  4. Step 4: Simplify right side
    549.70x = 435,218.18
  5. Step 5: Solve for x
    x = 435,218.18/549.70
  6. Step 6: Final answer
    x = 791.74

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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.