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Finding the Fourth Proportional to 443.92, 662.75 and 404.95

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Solution

The fourth proportional to 443.92, 662.75 and 404.95 is: 604.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.92 : 662.75 = 404.95 : x
  2. Step 2: Convert to fraction form
    443.92/662.75 = 404.95/x
  3. Step 3: Cross multiply
    443.92x = 662.75 × 404.95
  4. Step 4: Simplify right side
    443.92x = 268,380.61
  5. Step 5: Solve for x
    x = 268,380.61/443.92
  6. Step 6: Final answer
    x = 604.57

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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.