Home / 389,076.40-582,318.60-282,156.40

Finding the Fourth Proportional to 389,076.40, 582,318.60 and 282,156.40

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Solution

The fourth proportional to 389,076.40, 582,318.60 and 282,156.40 is: 422,294.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,076.40 : 582,318.60 = 282,156.40 : x
  2. Step 2: Convert to fraction form
    389,076.40/582,318.60 = 282,156.40/x
  3. Step 3: Cross multiply
    389,076.40x = 582,318.60 × 282,156.40
  4. Step 4: Simplify right side
    389,076.40x = 164,304,919,829.04
  5. Step 5: Solve for x
    x = 164,304,919,829.04/389,076.40
  6. Step 6: Final answer
    x = 422,294.75

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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.