Home / 724,716.73-1,086,645.79-219,124.45

Finding the Fourth Proportional to 724,716.73, 1,086,645.79 and 219,124.45

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Solution

The fourth proportional to 724,716.73, 1,086,645.79 and 219,124.45 is: 328,556.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,716.73 : 1,086,645.79 = 219,124.45 : x
  2. Step 2: Convert to fraction form
    724,716.73/1,086,645.79 = 219,124.45/x
  3. Step 3: Cross multiply
    724,716.73x = 1,086,645.79 × 219,124.45
  4. Step 4: Simplify right side
    724,716.73x = 238,110,661,078.57
  5. Step 5: Solve for x
    x = 238,110,661,078.57/724,716.73
  6. Step 6: Final answer
    x = 328,556.87

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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.