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Finding the Fourth Proportional to 557.92, 773.24 and 549.60

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Solution

The fourth proportional to 557.92, 773.24 and 549.60 is: 761.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.92 : 773.24 = 549.60 : x
  2. Step 2: Convert to fraction form
    557.92/773.24 = 549.60/x
  3. Step 3: Cross multiply
    557.92x = 773.24 × 549.60
  4. Step 4: Simplify right side
    557.92x = 424,972.70
  5. Step 5: Solve for x
    x = 424,972.70/557.92
  6. Step 6: Final answer
    x = 761.71

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.