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Finding the Third Proportional to 307,812 and 462,609

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Solution

The third proportional to 307,812 and 462,609 is: 695,252.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,812 : 462,609 = 462,609 : x
  2. Step 2: Convert to fraction form
    307,812/462,609 = 462,609/x
  3. Step 3: Cross multiply
    307,812x = 462,609 × 462,609
  4. Step 4: Simplify right side
    307,812x = 214,007,086,881
  5. Step 5: Solve for x
    x = 214,007,086,881/307,812
  6. Step 6: Final answer
    x = 695,252.58

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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.