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Finding the Third Proportional to 780,849 and 1,181,115

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Solution

The third proportional to 780,849 and 1,181,115 is: 1,786,558.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,849 : 1,181,115 = 1,181,115 : x
  2. Step 2: Convert to fraction form
    780,849/1,181,115 = 1,181,115/x
  3. Step 3: Cross multiply
    780,849x = 1,181,115 × 1,181,115
  4. Step 4: Simplify right side
    780,849x = 1,395,032,643,225
  5. Step 5: Solve for x
    x = 1,395,032,643,225/780,849
  6. Step 6: Final answer
    x = 1,786,558.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.