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Finding the Third Proportional to 830,401.25 and 1,815,892.75

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Solution

The third proportional to 830,401.25 and 1,815,892.75 is: 3,970,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,401.25 : 1,815,892.75 = 1,815,892.75 : x
  2. Step 2: Convert to fraction form
    830,401.25/1,815,892.75 = 1,815,892.75/x
  3. Step 3: Cross multiply
    830,401.25x = 1,815,892.75 × 1,815,892.75
  4. Step 4: Simplify right side
    830,401.25x = 3,297,466,479,502.56
  5. Step 5: Solve for x
    x = 3,297,466,479,502.56/830,401.25
  6. Step 6: Final answer
    x = 3,970,931.50

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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.