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Finding the Third Proportional to 453,844 and 990,782

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Solution

The third proportional to 453,844 and 990,782 is: 2,162,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,844 : 990,782 = 990,782 : x
  2. Step 2: Convert to fraction form
    453,844/990,782 = 990,782/x
  3. Step 3: Cross multiply
    453,844x = 990,782 × 990,782
  4. Step 4: Simplify right side
    453,844x = 981,648,971,524
  5. Step 5: Solve for x
    x = 981,648,971,524/453,844
  6. Step 6: Final answer
    x = 2,162,965.63

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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.