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Finding the Fourth Proportional to 546.57, 819.81 and 439.04

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Solution

The fourth proportional to 546.57, 819.81 and 439.04 is: 658.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.57 : 819.81 = 439.04 : x
  2. Step 2: Convert to fraction form
    546.57/819.81 = 439.04/x
  3. Step 3: Cross multiply
    546.57x = 819.81 × 439.04
  4. Step 4: Simplify right side
    546.57x = 359,931.43
  5. Step 5: Solve for x
    x = 359,931.43/546.57
  6. Step 6: Final answer
    x = 658.53

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