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Finding the Third Proportional to 453,674 and 978,218

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Solution

The third proportional to 453,674 and 978,218 is: 2,109,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,674 : 978,218 = 978,218 : x
  2. Step 2: Convert to fraction form
    453,674/978,218 = 978,218/x
  3. Step 3: Cross multiply
    453,674x = 978,218 × 978,218
  4. Step 4: Simplify right side
    453,674x = 956,910,455,524
  5. Step 5: Solve for x
    x = 956,910,455,524/453,674
  6. Step 6: Final answer
    x = 2,109,246.85

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.