Home / 819,158.05-1,228,736.02-220,119.22

Finding the Fourth Proportional to 819,158.05, 1,228,736.02 and 220,119.22

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Solution

The fourth proportional to 819,158.05, 1,228,736.02 and 220,119.22 is: 330,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,158.05 : 1,228,736.02 = 220,119.22 : x
  2. Step 2: Convert to fraction form
    819,158.05/1,228,736.02 = 220,119.22/x
  3. Step 3: Cross multiply
    819,158.05x = 1,228,736.02 × 220,119.22
  4. Step 4: Simplify right side
    819,158.05x = 270,468,407,064.03
  5. Step 5: Solve for x
    x = 270,468,407,064.03/819,158.05
  6. Step 6: Final answer
    x = 330,178.54

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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.