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Finding the Fourth Proportional to 625.35, 862.38 and 563.83

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Solution

The fourth proportional to 625.35, 862.38 and 563.83 is: 777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.35 : 862.38 = 563.83 : x
  2. Step 2: Convert to fraction form
    625.35/862.38 = 563.83/x
  3. Step 3: Cross multiply
    625.35x = 862.38 × 563.83
  4. Step 4: Simplify right side
    625.35x = 486,233.56
  5. Step 5: Solve for x
    x = 486,233.56/625.35
  6. Step 6: Final answer
    x = 777.53

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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.