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Finding the Third Proportional to 685,812 and 1,507,371

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Solution

The third proportional to 685,812 and 1,507,371 is: 3,313,105.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,812 : 1,507,371 = 1,507,371 : x
  2. Step 2: Convert to fraction form
    685,812/1,507,371 = 1,507,371/x
  3. Step 3: Cross multiply
    685,812x = 1,507,371 × 1,507,371
  4. Step 4: Simplify right side
    685,812x = 2,272,167,331,641
  5. Step 5: Solve for x
    x = 2,272,167,331,641/685,812
  6. Step 6: Final answer
    x = 3,313,105.24

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.