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Finding the Third Proportional to 318,966 and 513,926

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Solution

The third proportional to 318,966 and 513,926 is: 828,050.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,966 : 513,926 = 513,926 : x
  2. Step 2: Convert to fraction form
    318,966/513,926 = 513,926/x
  3. Step 3: Cross multiply
    318,966x = 513,926 × 513,926
  4. Step 4: Simplify right side
    318,966x = 264,119,933,476
  5. Step 5: Solve for x
    x = 264,119,933,476/318,966
  6. Step 6: Final answer
    x = 828,050.43

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.