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Finding the Fourth Proportional to 442.46, 667.01 and 412.73

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Solution

The fourth proportional to 442.46, 667.01 and 412.73 is: 622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    442.46 : 667.01 = 412.73 : x
  2. Step 2: Convert to fraction form
    442.46/667.01 = 412.73/x
  3. Step 3: Cross multiply
    442.46x = 667.01 × 412.73
  4. Step 4: Simplify right side
    442.46x = 275,292.14
  5. Step 5: Solve for x
    x = 275,292.14/442.46
  6. Step 6: Final answer
    x = 622.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.