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Finding the Third Proportional to 381,546 and 828,702

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Solution

The third proportional to 381,546 and 828,702 is: 1,799,906.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,546 : 828,702 = 828,702 : x
  2. Step 2: Convert to fraction form
    381,546/828,702 = 828,702/x
  3. Step 3: Cross multiply
    381,546x = 828,702 × 828,702
  4. Step 4: Simplify right side
    381,546x = 686,747,004,804
  5. Step 5: Solve for x
    x = 686,747,004,804/381,546
  6. Step 6: Final answer
    x = 1,799,906.18

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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.