Home / 1,279,110.15-1,918,331.10-380,309.85

Finding the Fourth Proportional to 1,279,110.15, 1,918,331.10 and 380,309.85

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Solution

The fourth proportional to 1,279,110.15, 1,918,331.10 and 380,309.85 is: 570,365.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,110.15 : 1,918,331.10 = 380,309.85 : x
  2. Step 2: Convert to fraction form
    1,279,110.15/1,918,331.10 = 380,309.85/x
  3. Step 3: Cross multiply
    1,279,110.15x = 1,918,331.10 × 380,309.85
  4. Step 4: Simplify right side
    1,279,110.15x = 729,560,212,891.34
  5. Step 5: Solve for x
    x = 729,560,212,891.34/1,279,110.15
  6. Step 6: Final answer
    x = 570,365.43

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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.