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Finding the Third Proportional to 286,032 and 428,496

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Solution

The third proportional to 286,032 and 428,496 is: 641,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,032 : 428,496 = 428,496 : x
  2. Step 2: Convert to fraction form
    286,032/428,496 = 428,496/x
  3. Step 3: Cross multiply
    286,032x = 428,496 × 428,496
  4. Step 4: Simplify right side
    286,032x = 183,608,822,016
  5. Step 5: Solve for x
    x = 183,608,822,016/286,032
  6. Step 6: Final answer
    x = 641,917.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.