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Finding the Fourth Proportional to 701.87, 968.60 and 407.17

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Solution

The fourth proportional to 701.87, 968.60 and 407.17 is: 561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.87 : 968.60 = 407.17 : x
  2. Step 2: Convert to fraction form
    701.87/968.60 = 407.17/x
  3. Step 3: Cross multiply
    701.87x = 968.60 × 407.17
  4. Step 4: Simplify right side
    701.87x = 394,377.98
  5. Step 5: Solve for x
    x = 394,377.98/701.87
  6. Step 6: Final answer
    x = 561.90

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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.