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Finding the Third Proportional to 1,398,589.31 and 2,159,667

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Solution

The third proportional to 1,398,589.31 and 2,159,667 is: 3,334,904.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,589.31 : 2,159,667 = 2,159,667 : x
  2. Step 2: Convert to fraction form
    1,398,589.31/2,159,667 = 2,159,667/x
  3. Step 3: Cross multiply
    1,398,589.31x = 2,159,667 × 2,159,667
  4. Step 4: Simplify right side
    1,398,589.31x = 4,664,161,550,889
  5. Step 5: Solve for x
    x = 4,664,161,550,889/1,398,589.31
  6. Step 6: Final answer
    x = 3,334,904.33

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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.