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Finding the Third Proportional to 1,287,646 and 1,992,893

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Solution

The third proportional to 1,287,646 and 1,992,893 is: 3,084,405.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,646 : 1,992,893 = 1,992,893 : x
  2. Step 2: Convert to fraction form
    1,287,646/1,992,893 = 1,992,893/x
  3. Step 3: Cross multiply
    1,287,646x = 1,992,893 × 1,992,893
  4. Step 4: Simplify right side
    1,287,646x = 3,971,622,509,449
  5. Step 5: Solve for x
    x = 3,971,622,509,449/1,287,646
  6. Step 6: Final answer
    x = 3,084,405.58

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.