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Finding the Third Proportional to 326,619 and 513,261

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Solution

The third proportional to 326,619 and 513,261 is: 806,557.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,619 : 513,261 = 513,261 : x
  2. Step 2: Convert to fraction form
    326,619/513,261 = 513,261/x
  3. Step 3: Cross multiply
    326,619x = 513,261 × 513,261
  4. Step 4: Simplify right side
    326,619x = 263,436,854,121
  5. Step 5: Solve for x
    x = 263,436,854,121/326,619
  6. Step 6: Final answer
    x = 806,557.04

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.