Home / 1,279,811.75-1,920,033.38-381,250.00

Finding the Fourth Proportional to 1,279,811.75, 1,920,033.38 and 381,250.00

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Solution

The fourth proportional to 1,279,811.75, 1,920,033.38 and 381,250.00 is: 571,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,811.75 : 1,920,033.38 = 381,250.00 : x
  2. Step 2: Convert to fraction form
    1,279,811.75/1,920,033.38 = 381,250.00/x
  3. Step 3: Cross multiply
    1,279,811.75x = 1,920,033.38 × 381,250.00
  4. Step 4: Simplify right side
    1,279,811.75x = 732,012,716,524.83
  5. Step 5: Solve for x
    x = 732,012,716,524.83/1,279,811.75
  6. Step 6: Final answer
    x = 571,969.05

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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.