Home / 381,819.39-572,736.38-115,578.87

Finding the Fourth Proportional to 381,819.39, 572,736.38 and 115,578.87

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Solution

The fourth proportional to 381,819.39, 572,736.38 and 115,578.87 is: 173,370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,819.39 : 572,736.38 = 115,578.87 : x
  2. Step 2: Convert to fraction form
    381,819.39/572,736.38 = 115,578.87/x
  3. Step 3: Cross multiply
    381,819.39x = 572,736.38 × 115,578.87
  4. Step 4: Simplify right side
    381,819.39x = 66,196,223,030.40
  5. Step 5: Solve for x
    x = 66,196,223,030.40/381,819.39
  6. Step 6: Final answer
    x = 173,370.51

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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.