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Finding the Fourth Proportional to 625.92, 934.32 and 574.56

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Solution

The fourth proportional to 625.92, 934.32 and 574.56 is: 857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.92 : 934.32 = 574.56 : x
  2. Step 2: Convert to fraction form
    625.92/934.32 = 574.56/x
  3. Step 3: Cross multiply
    625.92x = 934.32 × 574.56
  4. Step 4: Simplify right side
    625.92x = 536,822.90
  5. Step 5: Solve for x
    x = 536,822.90/625.92
  6. Step 6: Final answer
    x = 857.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.