Home / 328,927.76-493,392.92-79,609.36

Finding the Fourth Proportional to 328,927.76, 493,392.92 and 79,609.36

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Solution

The fourth proportional to 328,927.76, 493,392.92 and 79,609.36 is: 119,414.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,927.76 : 493,392.92 = 79,609.36 : x
  2. Step 2: Convert to fraction form
    328,927.76/493,392.92 = 79,609.36/x
  3. Step 3: Cross multiply
    328,927.76x = 493,392.92 × 79,609.36
  4. Step 4: Simplify right side
    328,927.76x = 39,278,694,589.73
  5. Step 5: Solve for x
    x = 39,278,694,589.73/328,927.76
  6. Step 6: Final answer
    x = 119,414.35

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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.