Home / 2,775,085.76-4,162,569.36-1,279,177.76

Finding the Fourth Proportional to 2,775,085.76, 4,162,569.36 and 1,279,177.76

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Solution

The fourth proportional to 2,775,085.76, 4,162,569.36 and 1,279,177.76 is: 1,918,739.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775,085.76 : 4,162,569.36 = 1,279,177.76 : x
  2. Step 2: Convert to fraction form
    2,775,085.76/4,162,569.36 = 1,279,177.76/x
  3. Step 3: Cross multiply
    2,775,085.76x = 4,162,569.36 × 1,279,177.76
  4. Step 4: Simplify right side
    2,775,085.76x = 5,324,666,149,769.43
  5. Step 5: Solve for x
    x = 5,324,666,149,769.43/2,775,085.76
  6. Step 6: Final answer
    x = 1,918,739.31

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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.