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Finding the Third Proportional to 378,870 and 585,192

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Solution

The third proportional to 378,870 and 585,192 is: 903,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,870 : 585,192 = 585,192 : x
  2. Step 2: Convert to fraction form
    378,870/585,192 = 585,192/x
  3. Step 3: Cross multiply
    378,870x = 585,192 × 585,192
  4. Step 4: Simplify right side
    378,870x = 342,449,676,864
  5. Step 5: Solve for x
    x = 342,449,676,864/378,870
  6. Step 6: Final answer
    x = 903,871.19

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.