Home / 680,848-1,021,180.06-281,433.36

Finding the Fourth Proportional to 680,848, 1,021,180.06 and 281,433.36

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Solution

The fourth proportional to 680,848, 1,021,180.06 and 281,433.36 is: 422,112.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,848 : 1,021,180.06 = 281,433.36 : x
  2. Step 2: Convert to fraction form
    680,848/1,021,180.06 = 281,433.36/x
  3. Step 3: Cross multiply
    680,848x = 1,021,180.06 × 281,433.36
  4. Step 4: Simplify right side
    680,848x = 287,394,135,450.80
  5. Step 5: Solve for x
    x = 287,394,135,450.80/680,848
  6. Step 6: Final answer
    x = 422,112.04

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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.