Home / 680,850.75-1,021,184.19-281,436.12

Finding the Fourth Proportional to 680,850.75, 1,021,184.19 and 281,436.12

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Solution

The fourth proportional to 680,850.75, 1,021,184.19 and 281,436.12 is: 422,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,850.75 : 1,021,184.19 = 281,436.12 : x
  2. Step 2: Convert to fraction form
    680,850.75/1,021,184.19 = 281,436.12/x
  3. Step 3: Cross multiply
    680,850.75x = 1,021,184.19 × 281,436.12
  4. Step 4: Simplify right side
    680,850.75x = 287,398,116,238.94
  5. Step 5: Solve for x
    x = 287,398,116,238.94/680,850.75
  6. Step 6: Final answer
    x = 422,116.18

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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.