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Finding the Third Proportional to 318,124.13 and 681,786.56

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Solution

The third proportional to 318,124.13 and 681,786.56 is: 1,461,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,124.13 : 681,786.56 = 681,786.56 : x
  2. Step 2: Convert to fraction form
    318,124.13/681,786.56 = 681,786.56/x
  3. Step 3: Cross multiply
    318,124.13x = 681,786.56 × 681,786.56
  4. Step 4: Simplify right side
    318,124.13x = 464,832,916,805.57
  5. Step 5: Solve for x
    x = 464,832,916,805.57/318,124.13
  6. Step 6: Final answer
    x = 1,461,168.39

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.