Home / 388,473-582,709.68-107,992.68

Finding the Fourth Proportional to 388,473, 582,709.68 and 107,992.68

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Solution

The fourth proportional to 388,473, 582,709.68 and 107,992.68 is: 161,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,473 : 582,709.68 = 107,992.68 : x
  2. Step 2: Convert to fraction form
    388,473/582,709.68 = 107,992.68/x
  3. Step 3: Cross multiply
    388,473x = 582,709.68 × 107,992.68
  4. Step 4: Simplify right side
    388,473x = 62,928,380,005.14
  5. Step 5: Solve for x
    x = 62,928,380,005.14/388,473
  6. Step 6: Final answer
    x = 161,989.07

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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.