Home / 394,606.52-591,915.24-128,368.43

Finding the Fourth Proportional to 394,606.52, 591,915.24 and 128,368.43

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Solution

The fourth proportional to 394,606.52, 591,915.24 and 128,368.43 is: 192,554.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,606.52 : 591,915.24 = 128,368.43 : x
  2. Step 2: Convert to fraction form
    394,606.52/591,915.24 = 128,368.43/x
  3. Step 3: Cross multiply
    394,606.52x = 591,915.24 × 128,368.43
  4. Step 4: Simplify right side
    394,606.52x = 75,983,227,092.30
  5. Step 5: Solve for x
    x = 75,983,227,092.30/394,606.52
  6. Step 6: Final answer
    x = 192,554.42

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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.