Home / 394,868.52-592,302.33-128,628.61

Finding the Fourth Proportional to 394,868.52, 592,302.33 and 128,628.61

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Solution

The fourth proportional to 394,868.52, 592,302.33 and 128,628.61 is: 192,942.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,868.52 : 592,302.33 = 128,628.61 : x
  2. Step 2: Convert to fraction form
    394,868.52/592,302.33 = 128,628.61/x
  3. Step 3: Cross multiply
    394,868.52x = 592,302.33 × 128,628.61
  4. Step 4: Simplify right side
    394,868.52x = 76,187,023,926.91
  5. Step 5: Solve for x
    x = 76,187,023,926.91/394,868.52
  6. Step 6: Final answer
    x = 192,942.76

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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.