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Finding the Fourth Proportional to 716.11, 979.73 and 713.03

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Solution

The fourth proportional to 716.11, 979.73 and 713.03 is: 975.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.11 : 979.73 = 713.03 : x
  2. Step 2: Convert to fraction form
    716.11/979.73 = 713.03/x
  3. Step 3: Cross multiply
    716.11x = 979.73 × 713.03
  4. Step 4: Simplify right side
    716.11x = 698,576.88
  5. Step 5: Solve for x
    x = 698,576.88/716.11
  6. Step 6: Final answer
    x = 975.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.