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Finding the Third Proportional to 407,871 and 827,132

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Solution

The third proportional to 407,871 and 827,132 is: 1,677,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,871 : 827,132 = 827,132 : x
  2. Step 2: Convert to fraction form
    407,871/827,132 = 827,132/x
  3. Step 3: Cross multiply
    407,871x = 827,132 × 827,132
  4. Step 4: Simplify right side
    407,871x = 684,147,345,424
  5. Step 5: Solve for x
    x = 684,147,345,424/407,871
  6. Step 6: Final answer
    x = 1,677,362.07

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.