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Finding the Third Proportional to 1,800,317 and 3,909,723

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Solution

The third proportional to 1,800,317 and 3,909,723 is: 8,490,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800,317 : 3,909,723 = 3,909,723 : x
  2. Step 2: Convert to fraction form
    1,800,317/3,909,723 = 3,909,723/x
  3. Step 3: Cross multiply
    1,800,317x = 3,909,723 × 3,909,723
  4. Step 4: Simplify right side
    1,800,317x = 15,285,933,936,729
  5. Step 5: Solve for x
    x = 15,285,933,936,729/1,800,317
  6. Step 6: Final answer
    x = 8,490,690.22

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.