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Finding the Third Proportional to 865,488 and 1,331,128

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Solution

The third proportional to 865,488 and 1,331,128 is: 2,047,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,488 : 1,331,128 = 1,331,128 : x
  2. Step 2: Convert to fraction form
    865,488/1,331,128 = 1,331,128/x
  3. Step 3: Cross multiply
    865,488x = 1,331,128 × 1,331,128
  4. Step 4: Simplify right side
    865,488x = 1,771,901,752,384
  5. Step 5: Solve for x
    x = 1,771,901,752,384/865,488
  6. Step 6: Final answer
    x = 2,047,286.33

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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.