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Finding the Fourth Proportional to 701.01, 1,043.39 and 681.57

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Solution

The fourth proportional to 701.01, 1,043.39 and 681.57 is: 1,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.01 : 1,043.39 = 681.57 : x
  2. Step 2: Convert to fraction form
    701.01/1,043.39 = 681.57/x
  3. Step 3: Cross multiply
    701.01x = 1,043.39 × 681.57
  4. Step 4: Simplify right side
    701.01x = 711,145.03
  5. Step 5: Solve for x
    x = 711,145.03/701.01
  6. Step 6: Final answer
    x = 1,014.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.