Home / 494,068.10-681,819.30-290,121.44

Finding the Fourth Proportional to 494,068.10, 681,819.30 and 290,121.44

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Solution

The fourth proportional to 494,068.10, 681,819.30 and 290,121.44 is: 400,370.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,068.10 : 681,819.30 = 290,121.44 : x
  2. Step 2: Convert to fraction form
    494,068.10/681,819.30 = 290,121.44/x
  3. Step 3: Cross multiply
    494,068.10x = 681,819.30 × 290,121.44
  4. Step 4: Simplify right side
    494,068.10x = 197,810,393,726.70
  5. Step 5: Solve for x
    x = 197,810,393,726.70/494,068.10
  6. Step 6: Final answer
    x = 400,370.71

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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.