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Finding the Third Proportional to 359,322 and 782,392

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Solution

The third proportional to 359,322 and 782,392 is: 1,703,589.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,322 : 782,392 = 782,392 : x
  2. Step 2: Convert to fraction form
    359,322/782,392 = 782,392/x
  3. Step 3: Cross multiply
    359,322x = 782,392 × 782,392
  4. Step 4: Simplify right side
    359,322x = 612,137,241,664
  5. Step 5: Solve for x
    x = 612,137,241,664/359,322
  6. Step 6: Final answer
    x = 1,703,589.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.