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Finding the Fourth Proportional to 545.28, 814.06 and 463.29

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Solution

The fourth proportional to 545.28, 814.06 and 463.29 is: 691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.28 : 814.06 = 463.29 : x
  2. Step 2: Convert to fraction form
    545.28/814.06 = 463.29/x
  3. Step 3: Cross multiply
    545.28x = 814.06 × 463.29
  4. Step 4: Simplify right side
    545.28x = 377,144.70
  5. Step 5: Solve for x
    x = 377,144.70/545.28
  6. Step 6: Final answer
    x = 691.65

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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.