Home / 394,815.29-592,264.44-128,596.55

Finding the Fourth Proportional to 394,815.29, 592,264.44 and 128,596.55

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Solution

The fourth proportional to 394,815.29, 592,264.44 and 128,596.55 is: 192,908.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,815.29 : 592,264.44 = 128,596.55 : x
  2. Step 2: Convert to fraction form
    394,815.29/592,264.44 = 128,596.55/x
  3. Step 3: Cross multiply
    394,815.29x = 592,264.44 × 128,596.55
  4. Step 4: Simplify right side
    394,815.29x = 76,163,163,671.68
  5. Step 5: Solve for x
    x = 76,163,163,671.68/394,815.29
  6. Step 6: Final answer
    x = 192,908.34

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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.