Home / 388,824.36-533,078.13-381,738.48

Finding the Fourth Proportional to 388,824.36, 533,078.13 and 381,738.48

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Solution

The fourth proportional to 388,824.36, 533,078.13 and 381,738.48 is: 523,363.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,824.36 : 533,078.13 = 381,738.48 : x
  2. Step 2: Convert to fraction form
    388,824.36/533,078.13 = 381,738.48/x
  3. Step 3: Cross multiply
    388,824.36x = 533,078.13 × 381,738.48
  4. Step 4: Simplify right side
    388,824.36x = 203,496,435,067.44
  5. Step 5: Solve for x
    x = 203,496,435,067.44/388,824.36
  6. Step 6: Final answer
    x = 523,363.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.