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Finding the Third Proportional to 988.17 and 1,479.66

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Solution

The third proportional to 988.17 and 1,479.66 is: 2,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    988.17 : 1,479.66 = 1,479.66 : x
  2. Step 2: Convert to fraction form
    988.17/1,479.66 = 1,479.66/x
  3. Step 3: Cross multiply
    988.17x = 1,479.66 × 1,479.66
  4. Step 4: Simplify right side
    988.17x = 2,189,382.62
  5. Step 5: Solve for x
    x = 2,189,382.62/988.17
  6. Step 6: Final answer
    x = 2,215.59

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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.