Home / 821,198.88-1,231,842.06-260,277.12

Finding the Fourth Proportional to 821,198.88, 1,231,842.06 and 260,277.12

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Solution

The fourth proportional to 821,198.88, 1,231,842.06 and 260,277.12 is: 390,429.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,198.88 : 1,231,842.06 = 260,277.12 : x
  2. Step 2: Convert to fraction form
    821,198.88/1,231,842.06 = 260,277.12/x
  3. Step 3: Cross multiply
    821,198.88x = 1,231,842.06 × 260,277.12
  4. Step 4: Simplify right side
    821,198.88x = 320,620,303,671.67
  5. Step 5: Solve for x
    x = 320,620,303,671.67/821,198.88
  6. Step 6: Final answer
    x = 390,429.54

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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.