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Finding the Third Proportional to 359,299.50 and 782,380.50

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Solution

The third proportional to 359,299.50 and 782,380.50 is: 1,703,646.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,299.50 : 782,380.50 = 782,380.50 : x
  2. Step 2: Convert to fraction form
    359,299.50/782,380.50 = 782,380.50/x
  3. Step 3: Cross multiply
    359,299.50x = 782,380.50 × 782,380.50
  4. Step 4: Simplify right side
    359,299.50x = 612,119,246,780.25
  5. Step 5: Solve for x
    x = 612,119,246,780.25/359,299.50
  6. Step 6: Final answer
    x = 1,703,646.25

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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.