Home / 819,091.76-1,228,554.60-219,975.07

Finding the Fourth Proportional to 819,091.76, 1,228,554.60 and 219,975.07

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Solution

The fourth proportional to 819,091.76, 1,228,554.60 and 219,975.07 is: 329,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,091.76 : 1,228,554.60 = 219,975.07 : x
  2. Step 2: Convert to fraction form
    819,091.76/1,228,554.60 = 219,975.07/x
  3. Step 3: Cross multiply
    819,091.76x = 1,228,554.60 × 219,975.07
  4. Step 4: Simplify right side
    819,091.76x = 270,251,384,133.82
  5. Step 5: Solve for x
    x = 270,251,384,133.82/819,091.76
  6. Step 6: Final answer
    x = 329,940.30

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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.