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Finding the Third Proportional to 874,425 and 1,286,631

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Solution

The third proportional to 874,425 and 1,286,631 is: 1,893,151.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,425 : 1,286,631 = 1,286,631 : x
  2. Step 2: Convert to fraction form
    874,425/1,286,631 = 1,286,631/x
  3. Step 3: Cross multiply
    874,425x = 1,286,631 × 1,286,631
  4. Step 4: Simplify right side
    874,425x = 1,655,419,330,161
  5. Step 5: Solve for x
    x = 1,655,419,330,161/874,425
  6. Step 6: Final answer
    x = 1,893,151.88

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.