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Finding the Third Proportional to 377,649 and 821,701.13

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Solution

The third proportional to 377,649 and 821,701.13 is: 1,787,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,649 : 821,701.13 = 821,701.13 : x
  2. Step 2: Convert to fraction form
    377,649/821,701.13 = 821,701.13/x
  3. Step 3: Cross multiply
    377,649x = 821,701.13 × 821,701.13
  4. Step 4: Simplify right side
    377,649x = 675,192,738,826.27
  5. Step 5: Solve for x
    x = 675,192,738,826.27/377,649
  6. Step 6: Final answer
    x = 1,787,884.36

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.