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Finding the Third Proportional to 728,214 and 1,130,660

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Solution

The third proportional to 728,214 and 1,130,660 is: 1,755,516.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,214 : 1,130,660 = 1,130,660 : x
  2. Step 2: Convert to fraction form
    728,214/1,130,660 = 1,130,660/x
  3. Step 3: Cross multiply
    728,214x = 1,130,660 × 1,130,660
  4. Step 4: Simplify right side
    728,214x = 1,278,392,035,600
  5. Step 5: Solve for x
    x = 1,278,392,035,600/728,214
  6. Step 6: Final answer
    x = 1,755,516.97

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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.