Home / 1,279,861.88-1,919,907.60-333,240.80

Finding the Fourth Proportional to 1,279,861.88, 1,919,907.60 and 333,240.80

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Solution

The fourth proportional to 1,279,861.88, 1,919,907.60 and 333,240.80 is: 499,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,861.88 : 1,919,907.60 = 333,240.80 : x
  2. Step 2: Convert to fraction form
    1,279,861.88/1,919,907.60 = 333,240.80/x
  3. Step 3: Cross multiply
    1,279,861.88x = 1,919,907.60 × 333,240.80
  4. Step 4: Simplify right side
    1,279,861.88x = 639,791,544,550.08
  5. Step 5: Solve for x
    x = 639,791,544,550.08/1,279,861.88
  6. Step 6: Final answer
    x = 499,891.09

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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.