Home / 388,986.24-582,538.80-321,932.80

Finding the Fourth Proportional to 388,986.24, 582,538.80 and 321,932.80

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Solution

The fourth proportional to 388,986.24, 582,538.80 and 321,932.80 is: 482,120.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,986.24 : 582,538.80 = 321,932.80 : x
  2. Step 2: Convert to fraction form
    388,986.24/582,538.80 = 321,932.80/x
  3. Step 3: Cross multiply
    388,986.24x = 582,538.80 × 321,932.80
  4. Step 4: Simplify right side
    388,986.24x = 187,538,346,992.64
  5. Step 5: Solve for x
    x = 187,538,346,992.64/388,986.24
  6. Step 6: Final answer
    x = 482,120.77

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1.5x scale

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.