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Finding the Third Proportional to 578,982 and 1,256,992

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Solution

The third proportional to 578,982 and 1,256,992 is: 2,728,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,982 : 1,256,992 = 1,256,992 : x
  2. Step 2: Convert to fraction form
    578,982/1,256,992 = 1,256,992/x
  3. Step 3: Cross multiply
    578,982x = 1,256,992 × 1,256,992
  4. Step 4: Simplify right side
    578,982x = 1,580,028,888,064
  5. Step 5: Solve for x
    x = 1,580,028,888,064/578,982
  6. Step 6: Final answer
    x = 2,728,977.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.