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Finding the Fourth Proportional to 701.48, 967.91 and 406.68

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Solution

The fourth proportional to 701.48, 967.91 and 406.68 is: 561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.48 : 967.91 = 406.68 : x
  2. Step 2: Convert to fraction form
    701.48/967.91 = 406.68/x
  3. Step 3: Cross multiply
    701.48x = 967.91 × 406.68
  4. Step 4: Simplify right side
    701.48x = 393,627.61
  5. Step 5: Solve for x
    x = 393,627.61/701.48
  6. Step 6: Final answer
    x = 561.14

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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.