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Finding the Third Proportional to 279,031.75 and 605,630.75

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Solution

The third proportional to 279,031.75 and 605,630.75 is: 1,314,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,031.75 : 605,630.75 = 605,630.75 : x
  2. Step 2: Convert to fraction form
    279,031.75/605,630.75 = 605,630.75/x
  3. Step 3: Cross multiply
    279,031.75x = 605,630.75 × 605,630.75
  4. Step 4: Simplify right side
    279,031.75x = 366,788,605,345.56
  5. Step 5: Solve for x
    x = 366,788,605,345.56/279,031.75
  6. Step 6: Final answer
    x = 1,314,504.91

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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.