Home / 819,098.25-1,228,564.35-219,981.57

Finding the Fourth Proportional to 819,098.25, 1,228,564.35 and 219,981.57

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Solution

The fourth proportional to 819,098.25, 1,228,564.35 and 219,981.57 is: 329,950.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,098.25 : 1,228,564.35 = 219,981.57 : x
  2. Step 2: Convert to fraction form
    819,098.25/1,228,564.35 = 219,981.57/x
  3. Step 3: Cross multiply
    819,098.25x = 1,228,564.35 × 219,981.57
  4. Step 4: Simplify right side
    819,098.25x = 270,261,514,559.03
  5. Step 5: Solve for x
    x = 270,261,514,559.03/819,098.25
  6. Step 6: Final answer
    x = 329,950.06

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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.