Home / 728,082.20-1,091,928.90-222,642.20

Finding the Fourth Proportional to 728,082.20, 1,091,928.90 and 222,642.20

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Solution

The fourth proportional to 728,082.20, 1,091,928.90 and 222,642.20 is: 333,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,082.20 : 1,091,928.90 = 222,642.20 : x
  2. Step 2: Convert to fraction form
    728,082.20/1,091,928.90 = 222,642.20/x
  3. Step 3: Cross multiply
    728,082.20x = 1,091,928.90 × 222,642.20
  4. Step 4: Simplify right side
    728,082.20x = 243,109,452,539.58
  5. Step 5: Solve for x
    x = 243,109,452,539.58/728,082.20
  6. Step 6: Final answer
    x = 333,903.85

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Double scale
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Similar ratio
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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.