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Finding the Fourth Proportional to 701.80, 968.42 and 480.35

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Solution

The fourth proportional to 701.80, 968.42 and 480.35 is: 662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.80 : 968.42 = 480.35 : x
  2. Step 2: Convert to fraction form
    701.80/968.42 = 480.35/x
  3. Step 3: Cross multiply
    701.80x = 968.42 × 480.35
  4. Step 4: Simplify right side
    701.80x = 465,184.17
  5. Step 5: Solve for x
    x = 465,184.17/701.80
  6. Step 6: Final answer
    x = 662.85

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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.