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Finding the Third Proportional to 307,032 and 660,720

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Solution

The third proportional to 307,032 and 660,720 is: 1,421,841.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,032 : 660,720 = 660,720 : x
  2. Step 2: Convert to fraction form
    307,032/660,720 = 660,720/x
  3. Step 3: Cross multiply
    307,032x = 660,720 × 660,720
  4. Step 4: Simplify right side
    307,032x = 436,550,918,400
  5. Step 5: Solve for x
    x = 436,550,918,400/307,032
  6. Step 6: Final answer
    x = 1,421,841.76

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.