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Finding the Third Proportional to 320,448 and 741,816

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Solution

The third proportional to 320,448 and 741,816 is: 1,717,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,448 : 741,816 = 741,816 : x
  2. Step 2: Convert to fraction form
    320,448/741,816 = 741,816/x
  3. Step 3: Cross multiply
    320,448x = 741,816 × 741,816
  4. Step 4: Simplify right side
    320,448x = 550,290,977,856
  5. Step 5: Solve for x
    x = 550,290,977,856/320,448
  6. Step 6: Final answer
    x = 1,717,255.15

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.