Home / 285,717.06-428,659.23-127,910.34

Finding the Fourth Proportional to 285,717.06, 428,659.23 and 127,910.34

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Solution

The fourth proportional to 285,717.06, 428,659.23 and 127,910.34 is: 191,902.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,717.06 : 428,659.23 = 127,910.34 : x
  2. Step 2: Convert to fraction form
    285,717.06/428,659.23 = 127,910.34/x
  3. Step 3: Cross multiply
    285,717.06x = 428,659.23 × 127,910.34
  4. Step 4: Simplify right side
    285,717.06x = 54,829,947,853.44
  5. Step 5: Solve for x
    x = 54,829,947,853.44/285,717.06
  6. Step 6: Final answer
    x = 191,902.95

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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.