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Finding the Fourth Proportional to 868.89, 1,301.97 and 675.03

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Solution

The fourth proportional to 868.89, 1,301.97 and 675.03 is: 1,011.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    868.89 : 1,301.97 = 675.03 : x
  2. Step 2: Convert to fraction form
    868.89/1,301.97 = 675.03/x
  3. Step 3: Cross multiply
    868.89x = 1,301.97 × 675.03
  4. Step 4: Simplify right side
    868.89x = 878,868.81
  5. Step 5: Solve for x
    x = 878,868.81/868.89
  6. Step 6: Final answer
    x = 1,011.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.