Home / 329,929.46-494,889.86-80,613.62

Finding the Fourth Proportional to 329,929.46, 494,889.86 and 80,613.62

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Solution

The fourth proportional to 329,929.46, 494,889.86 and 80,613.62 is: 120,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,929.46 : 494,889.86 = 80,613.62 : x
  2. Step 2: Convert to fraction form
    329,929.46/494,889.86 = 80,613.62/x
  3. Step 3: Cross multiply
    329,929.46x = 494,889.86 × 80,613.62
  4. Step 4: Simplify right side
    329,929.46x = 39,894,860,842.98
  5. Step 5: Solve for x
    x = 39,894,860,842.98/329,929.46
  6. Step 6: Final answer
    x = 120,919.37

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1.5x scale

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.