Home / 519,819.80-779,826.89-164,738.48

Finding the Fourth Proportional to 519,819.80, 779,826.89 and 164,738.48

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Solution

The fourth proportional to 519,819.80, 779,826.89 and 164,738.48 is: 247,138.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,819.80 : 779,826.89 = 164,738.48 : x
  2. Step 2: Convert to fraction form
    519,819.80/779,826.89 = 164,738.48/x
  3. Step 3: Cross multiply
    519,819.80x = 779,826.89 × 164,738.48
  4. Step 4: Simplify right side
    519,819.80x = 128,467,493,034.44
  5. Step 5: Solve for x
    x = 128,467,493,034.44/519,819.80
  6. Step 6: Final answer
    x = 247,138.52

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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.