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Finding the Fourth Proportional to 671.96, 927.56 and 450.84

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Solution

The fourth proportional to 671.96, 927.56 and 450.84 is: 622.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.96 : 927.56 = 450.84 : x
  2. Step 2: Convert to fraction form
    671.96/927.56 = 450.84/x
  3. Step 3: Cross multiply
    671.96x = 927.56 × 450.84
  4. Step 4: Simplify right side
    671.96x = 418,181.15
  5. Step 5: Solve for x
    x = 418,181.15/671.96
  6. Step 6: Final answer
    x = 622.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.