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Finding the Third Proportional to 715,467 and 1,555,179

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Solution

The third proportional to 715,467 and 1,555,179 is: 3,380,423.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,467 : 1,555,179 = 1,555,179 : x
  2. Step 2: Convert to fraction form
    715,467/1,555,179 = 1,555,179/x
  3. Step 3: Cross multiply
    715,467x = 1,555,179 × 1,555,179
  4. Step 4: Simplify right side
    715,467x = 2,418,581,722,041
  5. Step 5: Solve for x
    x = 2,418,581,722,041/715,467
  6. Step 6: Final answer
    x = 3,380,423.87

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.