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Finding the Third Proportional to 359,920 and 787,636

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Solution

The third proportional to 359,920 and 787,636 is: 1,723,634.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,920 : 787,636 = 787,636 : x
  2. Step 2: Convert to fraction form
    359,920/787,636 = 787,636/x
  3. Step 3: Cross multiply
    359,920x = 787,636 × 787,636
  4. Step 4: Simplify right side
    359,920x = 620,370,468,496
  5. Step 5: Solve for x
    x = 620,370,468,496/359,920
  6. Step 6: Final answer
    x = 1,723,634.33

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.