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Finding the Third Proportional to 426,626 and 648,579

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Solution

The third proportional to 426,626 and 648,579 is: 986,003.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,626 : 648,579 = 648,579 : x
  2. Step 2: Convert to fraction form
    426,626/648,579 = 648,579/x
  3. Step 3: Cross multiply
    426,626x = 648,579 × 648,579
  4. Step 4: Simplify right side
    426,626x = 420,654,719,241
  5. Step 5: Solve for x
    x = 420,654,719,241/426,626
  6. Step 6: Final answer
    x = 986,003.48

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.