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Finding the Third Proportional to 634,169 and 981,531

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Solution

The third proportional to 634,169 and 981,531 is: 1,519,158.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,169 : 981,531 = 981,531 : x
  2. Step 2: Convert to fraction form
    634,169/981,531 = 981,531/x
  3. Step 3: Cross multiply
    634,169x = 981,531 × 981,531
  4. Step 4: Simplify right side
    634,169x = 963,403,103,961
  5. Step 5: Solve for x
    x = 963,403,103,961/634,169
  6. Step 6: Final answer
    x = 1,519,158.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.