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Finding the Third Proportional to 538,239 and 1,268,781

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Solution

The third proportional to 538,239 and 1,268,781 is: 2,990,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,239 : 1,268,781 = 1,268,781 : x
  2. Step 2: Convert to fraction form
    538,239/1,268,781 = 1,268,781/x
  3. Step 3: Cross multiply
    538,239x = 1,268,781 × 1,268,781
  4. Step 4: Simplify right side
    538,239x = 1,609,805,225,961
  5. Step 5: Solve for x
    x = 1,609,805,225,961/538,239
  6. Step 6: Final answer
    x = 2,990,874.36

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.