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Finding the Fourth Proportional to 625.98, 863.94 and 377.46

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Solution

The fourth proportional to 625.98, 863.94 and 377.46 is: 520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.98 : 863.94 = 377.46 : x
  2. Step 2: Convert to fraction form
    625.98/863.94 = 377.46/x
  3. Step 3: Cross multiply
    625.98x = 863.94 × 377.46
  4. Step 4: Simplify right side
    625.98x = 326,102.79
  5. Step 5: Solve for x
    x = 326,102.79/625.98
  6. Step 6: Final answer
    x = 520.95

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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.