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Finding the Fourth Proportional to 701.66, 967.90 and 406.87

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Solution

The fourth proportional to 701.66, 967.90 and 406.87 is: 561.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.66 : 967.90 = 406.87 : x
  2. Step 2: Convert to fraction form
    701.66/967.90 = 406.87/x
  3. Step 3: Cross multiply
    701.66x = 967.90 × 406.87
  4. Step 4: Simplify right side
    701.66x = 393,812.24
  5. Step 5: Solve for x
    x = 393,812.24/701.66
  6. Step 6: Final answer
    x = 561.26

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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.