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Finding the Fourth Proportional to 713.03, 988.49 and 675.54

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Solution

The fourth proportional to 713.03, 988.49 and 675.54 is: 936.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.03 : 988.49 = 675.54 : x
  2. Step 2: Convert to fraction form
    713.03/988.49 = 675.54/x
  3. Step 3: Cross multiply
    713.03x = 988.49 × 675.54
  4. Step 4: Simplify right side
    713.03x = 667,759.59
  5. Step 5: Solve for x
    x = 667,759.59/713.03
  6. Step 6: Final answer
    x = 936.51

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.