Home / 722,415.33-1,083,631.19-189,990.18

Finding the Fourth Proportional to 722,415.33, 1,083,631.19 and 189,990.18

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Solution

The fourth proportional to 722,415.33, 1,083,631.19 and 189,990.18 is: 284,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,415.33 : 1,083,631.19 = 189,990.18 : x
  2. Step 2: Convert to fraction form
    722,415.33/1,083,631.19 = 189,990.18/x
  3. Step 3: Cross multiply
    722,415.33x = 1,083,631.19 × 189,990.18
  4. Step 4: Simplify right side
    722,415.33x = 205,879,283,891.76
  5. Step 5: Solve for x
    x = 205,879,283,891.76/722,415.33
  6. Step 6: Final answer
    x = 284,987.42

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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.