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Finding the Fourth Proportional to 625.44, 862.95 and 376.67

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Solution

The fourth proportional to 625.44, 862.95 and 376.67 is: 519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.44 : 862.95 = 376.67 : x
  2. Step 2: Convert to fraction form
    625.44/862.95 = 376.67/x
  3. Step 3: Cross multiply
    625.44x = 862.95 × 376.67
  4. Step 4: Simplify right side
    625.44x = 325,047.38
  5. Step 5: Solve for x
    x = 325,047.38/625.44
  6. Step 6: Final answer
    x = 519.71

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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.