Home / 1,279,857.87-1,919,901.60-333,236.79

Finding the Fourth Proportional to 1,279,857.87, 1,919,901.60 and 333,236.79

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Solution

The fourth proportional to 1,279,857.87, 1,919,901.60 and 333,236.79 is: 499,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,857.87 : 1,919,901.60 = 333,236.79 : x
  2. Step 2: Convert to fraction form
    1,279,857.87/1,919,901.60 = 333,236.79/x
  3. Step 3: Cross multiply
    1,279,857.87x = 1,919,901.60 × 333,236.79
  4. Step 4: Simplify right side
    1,279,857.87x = 639,781,846,299.86
  5. Step 5: Solve for x
    x = 639,781,846,299.86/1,279,857.87
  6. Step 6: Final answer
    x = 499,885.07

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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.