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Finding the Fourth Proportional to 625.92, 940.32 and 383.04

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Solution

The fourth proportional to 625.92, 940.32 and 383.04 is: 575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.92 : 940.32 = 383.04 : x
  2. Step 2: Convert to fraction form
    625.92/940.32 = 383.04/x
  3. Step 3: Cross multiply
    625.92x = 940.32 × 383.04
  4. Step 4: Simplify right side
    625.92x = 360,180.17
  5. Step 5: Solve for x
    x = 360,180.17/625.92
  6. Step 6: Final answer
    x = 575.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.