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Finding the Third Proportional to 217,819 and 471,837

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Solution

The third proportional to 217,819 and 471,837 is: 1,022,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,819 : 471,837 = 471,837 : x
  2. Step 2: Convert to fraction form
    217,819/471,837 = 471,837/x
  3. Step 3: Cross multiply
    217,819x = 471,837 × 471,837
  4. Step 4: Simplify right side
    217,819x = 222,630,154,569
  5. Step 5: Solve for x
    x = 222,630,154,569/217,819
  6. Step 6: Final answer
    x = 1,022,087.86

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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.