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Finding the Fourth Proportional to 494,143.70, 741,215.55 and 294,689.30

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Solution

The fourth proportional to 494,143.70, 741,215.55 and 294,689.30 is: 442,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,143.70 : 741,215.55 = 294,689.30 : x
  2. Step 2: Convert to fraction form
    494,143.70/741,215.55 = 294,689.30/x
  3. Step 3: Cross multiply
    494,143.70x = 741,215.55 × 294,689.30
  4. Step 4: Simplify right side
    494,143.70x = 218,428,291,578.62
  5. Step 5: Solve for x
    x = 218,428,291,578.62/494,143.70
  6. Step 6: Final answer
    x = 442,033.95

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Similar ratio
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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.