Home / 392,961.68-589,557.52-126,716.84

Finding the Fourth Proportional to 392,961.68, 589,557.52 and 126,716.84

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Solution

The fourth proportional to 392,961.68, 589,557.52 and 126,716.84 is: 190,112.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,961.68 : 589,557.52 = 126,716.84 : x
  2. Step 2: Convert to fraction form
    392,961.68/589,557.52 = 126,716.84/x
  3. Step 3: Cross multiply
    392,961.68x = 589,557.52 × 126,716.84
  4. Step 4: Simplify right side
    392,961.68x = 74,706,865,932.64
  5. Step 5: Solve for x
    x = 74,706,865,932.64/392,961.68
  6. Step 6: Final answer
    x = 190,112.34

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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.