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Finding the Fourth Proportional to 601.92, 903.42 and 396.72

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Solution

The fourth proportional to 601.92, 903.42 and 396.72 is: 595.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.92 : 903.42 = 396.72 : x
  2. Step 2: Convert to fraction form
    601.92/903.42 = 396.72/x
  3. Step 3: Cross multiply
    601.92x = 903.42 × 396.72
  4. Step 4: Simplify right side
    601.92x = 358,404.78
  5. Step 5: Solve for x
    x = 358,404.78/601.92
  6. Step 6: Final answer
    x = 595.44

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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.