Home / 819,158.77-1,228,737.09-220,119.94

Finding the Fourth Proportional to 819,158.77, 1,228,737.09 and 220,119.94

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Solution

The fourth proportional to 819,158.77, 1,228,737.09 and 220,119.94 is: 330,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,158.77 : 1,228,737.09 = 220,119.94 : x
  2. Step 2: Convert to fraction form
    819,158.77/1,228,737.09 = 220,119.94/x
  3. Step 3: Cross multiply
    819,158.77x = 1,228,737.09 × 220,119.94
  4. Step 4: Simplify right side
    819,158.77x = 270,469,528,382.89
  5. Step 5: Solve for x
    x = 270,469,528,382.89/819,158.77
  6. Step 6: Final answer
    x = 330,179.62

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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.