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Finding the Third Proportional to 307,520 and 667,520

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Solution

The third proportional to 307,520 and 667,520 is: 1,448,956.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,520 : 667,520 = 667,520 : x
  2. Step 2: Convert to fraction form
    307,520/667,520 = 667,520/x
  3. Step 3: Cross multiply
    307,520x = 667,520 × 667,520
  4. Step 4: Simplify right side
    307,520x = 445,582,950,400
  5. Step 5: Solve for x
    x = 445,582,950,400/307,520
  6. Step 6: Final answer
    x = 1,448,956.00

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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.