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Finding the Fourth Proportional to 701.30, 1,046.90 and 694.46

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Solution

The fourth proportional to 701.30, 1,046.90 and 694.46 is: 1,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.30 : 1,046.90 = 694.46 : x
  2. Step 2: Convert to fraction form
    701.30/1,046.90 = 694.46/x
  3. Step 3: Cross multiply
    701.30x = 1,046.90 × 694.46
  4. Step 4: Simplify right side
    701.30x = 727,030.17
  5. Step 5: Solve for x
    x = 727,030.17/701.30
  6. Step 6: Final answer
    x = 1,036.69

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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.