Home / 2,186,481.60-3,279,722.40-768,139.20

Finding the Fourth Proportional to 2,186,481.60, 3,279,722.40 and 768,139.20

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Solution

The fourth proportional to 2,186,481.60, 3,279,722.40 and 768,139.20 is: 1,152,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186,481.60 : 3,279,722.40 = 768,139.20 : x
  2. Step 2: Convert to fraction form
    2,186,481.60/3,279,722.40 = 768,139.20/x
  3. Step 3: Cross multiply
    2,186,481.60x = 3,279,722.40 × 768,139.20
  4. Step 4: Simplify right side
    2,186,481.60x = 2,519,283,340,558.08
  5. Step 5: Solve for x
    x = 2,519,283,340,558.08/2,186,481.60
  6. Step 6: Final answer
    x = 1,152,208.80

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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.