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Finding the Fourth Proportional to 545.97, 818.96 and 449.49

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Solution

The fourth proportional to 545.97, 818.96 and 449.49 is: 674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.97 : 818.96 = 449.49 : x
  2. Step 2: Convert to fraction form
    545.97/818.96 = 449.49/x
  3. Step 3: Cross multiply
    545.97x = 818.96 × 449.49
  4. Step 4: Simplify right side
    545.97x = 368,114.33
  5. Step 5: Solve for x
    x = 368,114.33/545.97
  6. Step 6: Final answer
    x = 674.24

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Double scale
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Similar ratio
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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.