Home / 881,230.20-1,322,190.90-320,321.40

Finding the Fourth Proportional to 881,230.20, 1,322,190.90 and 320,321.40

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Solution

The fourth proportional to 881,230.20, 1,322,190.90 and 320,321.40 is: 480,607.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,230.20 : 1,322,190.90 = 320,321.40 : x
  2. Step 2: Convert to fraction form
    881,230.20/1,322,190.90 = 320,321.40/x
  3. Step 3: Cross multiply
    881,230.20x = 1,322,190.90 × 320,321.40
  4. Step 4: Simplify right side
    881,230.20x = 423,526,040,155.26
  5. Step 5: Solve for x
    x = 423,526,040,155.26/881,230.20
  6. Step 6: Final answer
    x = 480,607.72

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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.