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Finding the Third Proportional to 648,205.88 and 981,253.13

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Solution

The third proportional to 648,205.88 and 981,253.13 is: 1,485,419.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,205.88 : 981,253.13 = 981,253.13 : x
  2. Step 2: Convert to fraction form
    648,205.88/981,253.13 = 981,253.13/x
  3. Step 3: Cross multiply
    648,205.88x = 981,253.13 × 981,253.13
  4. Step 4: Simplify right side
    648,205.88x = 962,857,695,322.27
  5. Step 5: Solve for x
    x = 962,857,695,322.27/648,205.88
  6. Step 6: Final answer
    x = 1,485,419.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.