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Finding the Fourth Proportional to 701.20, 966.68 and 439.04

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Solution

The fourth proportional to 701.20, 966.68 and 439.04 is: 605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.20 : 966.68 = 439.04 : x
  2. Step 2: Convert to fraction form
    701.20/966.68 = 439.04/x
  3. Step 3: Cross multiply
    701.20x = 966.68 × 439.04
  4. Step 4: Simplify right side
    701.20x = 424,411.19
  5. Step 5: Solve for x
    x = 424,411.19/701.20
  6. Step 6: Final answer
    x = 605.26

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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.