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Finding the Third Proportional to 715,469 and 1,555,183

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Solution

The third proportional to 715,469 and 1,555,183 is: 3,380,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,469 : 1,555,183 = 1,555,183 : x
  2. Step 2: Convert to fraction form
    715,469/1,555,183 = 1,555,183/x
  3. Step 3: Cross multiply
    715,469x = 1,555,183 × 1,555,183
  4. Step 4: Simplify right side
    715,469x = 2,418,594,163,489
  5. Step 5: Solve for x
    x = 2,418,594,163,489/715,469
  6. Step 6: Final answer
    x = 3,380,431.81

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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.