Home / 388,936.40-582,108.60-282,016.40

Finding the Fourth Proportional to 388,936.40, 582,108.60 and 282,016.40

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Solution

The fourth proportional to 388,936.40, 582,108.60 and 282,016.40 is: 422,084.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,936.40 : 582,108.60 = 282,016.40 : x
  2. Step 2: Convert to fraction form
    388,936.40/582,108.60 = 282,016.40/x
  3. Step 3: Cross multiply
    388,936.40x = 582,108.60 × 282,016.40
  4. Step 4: Simplify right side
    388,936.40x = 164,164,171,781.04
  5. Step 5: Solve for x
    x = 164,164,171,781.04/388,936.40
  6. Step 6: Final answer
    x = 422,084.88

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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.