Home / 386,822.22-580,233.54-120,604.20

Finding the Fourth Proportional to 386,822.22, 580,233.54 and 120,604.20

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Solution

The fourth proportional to 386,822.22, 580,233.54 and 120,604.20 is: 180,906.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,822.22 : 580,233.54 = 120,604.20 : x
  2. Step 2: Convert to fraction form
    386,822.22/580,233.54 = 120,604.20/x
  3. Step 3: Cross multiply
    386,822.22x = 580,233.54 × 120,604.20
  4. Step 4: Simplify right side
    386,822.22x = 69,978,601,904.87
  5. Step 5: Solve for x
    x = 69,978,601,904.87/386,822.22
  6. Step 6: Final answer
    x = 180,906.37

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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.