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Finding the Third Proportional to 414,464 and 858,408

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Solution

The third proportional to 414,464 and 858,408 is: 1,777,872.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,464 : 858,408 = 858,408 : x
  2. Step 2: Convert to fraction form
    414,464/858,408 = 858,408/x
  3. Step 3: Cross multiply
    414,464x = 858,408 × 858,408
  4. Step 4: Simplify right side
    414,464x = 736,864,294,464
  5. Step 5: Solve for x
    x = 736,864,294,464/414,464
  6. Step 6: Final answer
    x = 1,777,872.85

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.