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Finding the Fourth Proportional to 701.75, 968.60 and 407.13

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Solution

The fourth proportional to 701.75, 968.60 and 407.13 is: 561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.75 : 968.60 = 407.13 : x
  2. Step 2: Convert to fraction form
    701.75/968.60 = 407.13/x
  3. Step 3: Cross multiply
    701.75x = 968.60 × 407.13
  4. Step 4: Simplify right side
    701.75x = 394,347.14
  5. Step 5: Solve for x
    x = 394,347.14/701.75
  6. Step 6: Final answer
    x = 561.95

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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.