Home / 815,037.12-1,222,620.48-254,076.48

Finding the Fourth Proportional to 815,037.12, 1,222,620.48 and 254,076.48

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Solution

The fourth proportional to 815,037.12, 1,222,620.48 and 254,076.48 is: 381,134.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,037.12 : 1,222,620.48 = 254,076.48 : x
  2. Step 2: Convert to fraction form
    815,037.12/1,222,620.48 = 254,076.48/x
  3. Step 3: Cross multiply
    815,037.12x = 1,222,620.48 × 254,076.48
  4. Step 4: Simplify right side
    815,037.12x = 310,639,107,934.31
  5. Step 5: Solve for x
    x = 310,639,107,934.31/815,037.12
  6. Step 6: Final answer
    x = 381,134.92

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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.