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Finding the Fourth Proportional to 701.15, 968.45 and 555.71

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Solution

The fourth proportional to 701.15, 968.45 and 555.71 is: 767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.15 : 968.45 = 555.71 : x
  2. Step 2: Convert to fraction form
    701.15/968.45 = 555.71/x
  3. Step 3: Cross multiply
    701.15x = 968.45 × 555.71
  4. Step 4: Simplify right side
    701.15x = 538,169.73
  5. Step 5: Solve for x
    x = 538,169.73/701.15
  6. Step 6: Final answer
    x = 767.56

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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.