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Finding the Fourth Proportional to 701.58, 968.56 and 627.72

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Solution

The fourth proportional to 701.58, 968.56 and 627.72 is: 866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.58 : 968.56 = 627.72 : x
  2. Step 2: Convert to fraction form
    701.58/968.56 = 627.72/x
  3. Step 3: Cross multiply
    701.58x = 968.56 × 627.72
  4. Step 4: Simplify right side
    701.58x = 607,984.48
  5. Step 5: Solve for x
    x = 607,984.48/701.58
  6. Step 6: Final answer
    x = 866.59

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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.