Home / 820,909.44-1,231,245.36-221,905.44

Finding the Fourth Proportional to 820,909.44, 1,231,245.36 and 221,905.44

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Solution

The fourth proportional to 820,909.44, 1,231,245.36 and 221,905.44 is: 332,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,909.44 : 1,231,245.36 = 221,905.44 : x
  2. Step 2: Convert to fraction form
    820,909.44/1,231,245.36 = 221,905.44/x
  3. Step 3: Cross multiply
    820,909.44x = 1,231,245.36 × 221,905.44
  4. Step 4: Simplify right side
    820,909.44x = 273,220,043,358.76
  5. Step 5: Solve for x
    x = 273,220,043,358.76/820,909.44
  6. Step 6: Final answer
    x = 332,826.05

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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.