Home / 2,784,279.20-4,176,418.80-1,291,287.20

Finding the Fourth Proportional to 2,784,279.20, 4,176,418.80 and 1,291,287.20

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Solution

The fourth proportional to 2,784,279.20, 4,176,418.80 and 1,291,287.20 is: 1,936,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784,279.20 : 4,176,418.80 = 1,291,287.20 : x
  2. Step 2: Convert to fraction form
    2,784,279.20/4,176,418.80 = 1,291,287.20/x
  3. Step 3: Cross multiply
    2,784,279.20x = 4,176,418.80 × 1,291,287.20
  4. Step 4: Simplify right side
    2,784,279.20x = 5,392,956,138,279.36
  5. Step 5: Solve for x
    x = 5,392,956,138,279.36/2,784,279.20
  6. Step 6: Final answer
    x = 1,936,930.80

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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.