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Finding the Third Proportional to 558,338 and 1,220,980

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Solution

The third proportional to 558,338 and 1,220,980 is: 2,670,053.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,338 : 1,220,980 = 1,220,980 : x
  2. Step 2: Convert to fraction form
    558,338/1,220,980 = 1,220,980/x
  3. Step 3: Cross multiply
    558,338x = 1,220,980 × 1,220,980
  4. Step 4: Simplify right side
    558,338x = 1,490,792,160,400
  5. Step 5: Solve for x
    x = 1,490,792,160,400/558,338
  6. Step 6: Final answer
    x = 2,670,053.19

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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.