Home / 728,082.37-1,091,606.42-278,424.24

Finding the Fourth Proportional to 728,082.37, 1,091,606.42 and 278,424.24

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Solution

The fourth proportional to 728,082.37, 1,091,606.42 and 278,424.24 is: 417,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,082.37 : 1,091,606.42 = 278,424.24 : x
  2. Step 2: Convert to fraction form
    728,082.37/1,091,606.42 = 278,424.24/x
  3. Step 3: Cross multiply
    728,082.37x = 1,091,606.42 × 278,424.24
  4. Step 4: Simplify right side
    728,082.37x = 303,929,684,470.16
  5. Step 5: Solve for x
    x = 303,929,684,470.16/728,082.37
  6. Step 6: Final answer
    x = 417,438.60

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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.