Home / 1,320,453.93-1,821,481.72-769,104.65

Finding the Fourth Proportional to 1,320,453.93, 1,821,481.72 and 769,104.65

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Solution

The fourth proportional to 1,320,453.93, 1,821,481.72 and 769,104.65 is: 1,060,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,453.93 : 1,821,481.72 = 769,104.65 : x
  2. Step 2: Convert to fraction form
    1,320,453.93/1,821,481.72 = 769,104.65/x
  3. Step 3: Cross multiply
    1,320,453.93x = 1,821,481.72 × 769,104.65
  4. Step 4: Simplify right side
    1,320,453.93x = 1,400,910,063,372.94
  5. Step 5: Solve for x
    x = 1,400,910,063,372.94/1,320,453.93
  6. Step 6: Final answer
    x = 1,060,930.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.