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Finding the Third Proportional to 858,269 and 1,261,129

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Solution

The third proportional to 858,269 and 1,261,129 is: 1,853,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,269 : 1,261,129 = 1,261,129 : x
  2. Step 2: Convert to fraction form
    858,269/1,261,129 = 1,261,129/x
  3. Step 3: Cross multiply
    858,269x = 1,261,129 × 1,261,129
  4. Step 4: Simplify right side
    858,269x = 1,590,446,354,641
  5. Step 5: Solve for x
    x = 1,590,446,354,641/858,269
  6. Step 6: Final answer
    x = 1,853,086.10

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.