Home / 393,975.78-590,976.63-127,738.50

Finding the Fourth Proportional to 393,975.78, 590,976.63 and 127,738.50

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Solution

The fourth proportional to 393,975.78, 590,976.63 and 127,738.50 is: 191,611.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,975.78 : 590,976.63 = 127,738.50 : x
  2. Step 2: Convert to fraction form
    393,975.78/590,976.63 = 127,738.50/x
  3. Step 3: Cross multiply
    393,975.78x = 590,976.63 × 127,738.50
  4. Step 4: Simplify right side
    393,975.78x = 75,490,468,251.26
  5. Step 5: Solve for x
    x = 75,490,468,251.26/393,975.78
  6. Step 6: Final answer
    x = 191,611.95

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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.