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Finding the Third Proportional to 394,887 and 852,816

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Solution

The third proportional to 394,887 and 852,816 is: 1,841,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,887 : 852,816 = 852,816 : x
  2. Step 2: Convert to fraction form
    394,887/852,816 = 852,816/x
  3. Step 3: Cross multiply
    394,887x = 852,816 × 852,816
  4. Step 4: Simplify right side
    394,887x = 727,295,129,856
  5. Step 5: Solve for x
    x = 727,295,129,856/394,887
  6. Step 6: Final answer
    x = 1,841,780.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.