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Finding the Third Proportional to 279,830 and 657,806

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Solution

The third proportional to 279,830 and 657,806 is: 1,546,327.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,830 : 657,806 = 657,806 : x
  2. Step 2: Convert to fraction form
    279,830/657,806 = 657,806/x
  3. Step 3: Cross multiply
    279,830x = 657,806 × 657,806
  4. Step 4: Simplify right side
    279,830x = 432,708,733,636
  5. Step 5: Solve for x
    x = 432,708,733,636/279,830
  6. Step 6: Final answer
    x = 1,546,327.18

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.