Home / 819,238.43-1,228,855.84-220,199.57

Finding the Fourth Proportional to 819,238.43, 1,228,855.84 and 220,199.57

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Solution

The fourth proportional to 819,238.43, 1,228,855.84 and 220,199.57 is: 330,298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,238.43 : 1,228,855.84 = 220,199.57 : x
  2. Step 2: Convert to fraction form
    819,238.43/1,228,855.84 = 220,199.57/x
  3. Step 3: Cross multiply
    819,238.43x = 1,228,855.84 × 220,199.57
  4. Step 4: Simplify right side
    819,238.43x = 270,593,527,559.99
  5. Step 5: Solve for x
    x = 270,593,527,559.99/819,238.43
  6. Step 6: Final answer
    x = 330,298.87

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Double scale
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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.