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Finding the Third Proportional to 454,580 and 681,870

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Solution

The third proportional to 454,580 and 681,870 is: 1,022,805

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,580 : 681,870 = 681,870 : x
  2. Step 2: Convert to fraction form
    454,580/681,870 = 681,870/x
  3. Step 3: Cross multiply
    454,580x = 681,870 × 681,870
  4. Step 4: Simplify right side
    454,580x = 464,946,696,900
  5. Step 5: Solve for x
    x = 464,946,696,900/454,580
  6. Step 6: Final answer
    x = 1,022,805

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.