Home / 741,212.20-1,112,336.70-320,789.80

Finding the Fourth Proportional to 741,212.20, 1,112,336.70 and 320,789.80

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Solution

The fourth proportional to 741,212.20, 1,112,336.70 and 320,789.80 is: 481,409.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,212.20 : 1,112,336.70 = 320,789.80 : x
  2. Step 2: Convert to fraction form
    741,212.20/1,112,336.70 = 320,789.80/x
  3. Step 3: Cross multiply
    741,212.20x = 1,112,336.70 × 320,789.80
  4. Step 4: Simplify right side
    741,212.20x = 356,826,267,525.66
  5. Step 5: Solve for x
    x = 356,826,267,525.66/741,212.20
  6. Step 6: Final answer
    x = 481,409.06

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1.5x scale

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.