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Finding the Fourth Proportional to 626.34, 863.65 and 468.47

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Solution

The fourth proportional to 626.34, 863.65 and 468.47 is: 645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.34 : 863.65 = 468.47 : x
  2. Step 2: Convert to fraction form
    626.34/863.65 = 468.47/x
  3. Step 3: Cross multiply
    626.34x = 863.65 × 468.47
  4. Step 4: Simplify right side
    626.34x = 404,593.38
  5. Step 5: Solve for x
    x = 404,593.38/626.34
  6. Step 6: Final answer
    x = 645.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.