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Finding the Third Proportional to 728,194 and 1,130,631

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Solution

The third proportional to 728,194 and 1,130,631 is: 1,755,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,194 : 1,130,631 = 1,130,631 : x
  2. Step 2: Convert to fraction form
    728,194/1,130,631 = 1,130,631/x
  3. Step 3: Cross multiply
    728,194x = 1,130,631 × 1,130,631
  4. Step 4: Simplify right side
    728,194x = 1,278,326,458,161
  5. Step 5: Solve for x
    x = 1,278,326,458,161/728,194
  6. Step 6: Final answer
    x = 1,755,475.13

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Why These Related Problems?

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