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Finding the Fourth Proportional to 701.31, 967.55 and 406.53

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Solution

The fourth proportional to 701.31, 967.55 and 406.53 is: 560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.31 : 967.55 = 406.53 : x
  2. Step 2: Convert to fraction form
    701.31/967.55 = 406.53/x
  3. Step 3: Cross multiply
    701.31x = 967.55 × 406.53
  4. Step 4: Simplify right side
    701.31x = 393,336.07
  5. Step 5: Solve for x
    x = 393,336.07/701.31
  6. Step 6: Final answer
    x = 560.86

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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.