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Finding the Third Proportional to 354,456 and 777,810

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Solution

The third proportional to 354,456 and 777,810 is: 1,706,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,456 : 777,810 = 777,810 : x
  2. Step 2: Convert to fraction form
    354,456/777,810 = 777,810/x
  3. Step 3: Cross multiply
    354,456x = 777,810 × 777,810
  4. Step 4: Simplify right side
    354,456x = 604,988,396,100
  5. Step 5: Solve for x
    x = 604,988,396,100/354,456
  6. Step 6: Final answer
    x = 1,706,808.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.