Home / 1,215,250.62-1,821,691.15-485,556.31

Finding the Fourth Proportional to 1,215,250.62, 1,821,691.15 and 485,556.31

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Solution

The fourth proportional to 1,215,250.62, 1,821,691.15 and 485,556.31 is: 727,861.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,250.62 : 1,821,691.15 = 485,556.31 : x
  2. Step 2: Convert to fraction form
    1,215,250.62/1,821,691.15 = 485,556.31/x
  3. Step 3: Cross multiply
    1,215,250.62x = 1,821,691.15 × 485,556.31
  4. Step 4: Simplify right side
    1,215,250.62x = 884,533,632,906.46
  5. Step 5: Solve for x
    x = 884,533,632,906.46/1,215,250.62
  6. Step 6: Final answer
    x = 727,861.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.