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Finding the Fourth Proportional to 562.85, 842.97 and 543.38

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Solution

The fourth proportional to 562.85, 842.97 and 543.38 is: 813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.85 : 842.97 = 543.38 : x
  2. Step 2: Convert to fraction form
    562.85/842.97 = 543.38/x
  3. Step 3: Cross multiply
    562.85x = 842.97 × 543.38
  4. Step 4: Simplify right side
    562.85x = 458,053.04
  5. Step 5: Solve for x
    x = 458,053.04/562.85
  6. Step 6: Final answer
    x = 813.81

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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.