Home / 494,007.82-681,721.89-279,143.26

Finding the Fourth Proportional to 494,007.82, 681,721.89 and 279,143.26

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Solution

The fourth proportional to 494,007.82, 681,721.89 and 279,143.26 is: 385,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,007.82 : 681,721.89 = 279,143.26 : x
  2. Step 2: Convert to fraction form
    494,007.82/681,721.89 = 279,143.26/x
  3. Step 3: Cross multiply
    494,007.82x = 681,721.89 × 279,143.26
  4. Step 4: Simplify right side
    494,007.82x = 190,298,070,787.96
  5. Step 5: Solve for x
    x = 190,298,070,787.96/494,007.82
  6. Step 6: Final answer
    x = 385,212.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.