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Finding the Third Proportional to 378,639 and 807,795

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Solution

The third proportional to 378,639 and 807,795 is: 1,723,363.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,639 : 807,795 = 807,795 : x
  2. Step 2: Convert to fraction form
    378,639/807,795 = 807,795/x
  3. Step 3: Cross multiply
    378,639x = 807,795 × 807,795
  4. Step 4: Simplify right side
    378,639x = 652,532,762,025
  5. Step 5: Solve for x
    x = 652,532,762,025/378,639
  6. Step 6: Final answer
    x = 1,723,363.84

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.