Home / 329,788.20-494,682.30-80,470.20

Finding the Fourth Proportional to 329,788.20, 494,682.30 and 80,470.20

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Solution

The fourth proportional to 329,788.20, 494,682.30 and 80,470.20 is: 120,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,788.20 : 494,682.30 = 80,470.20 : x
  2. Step 2: Convert to fraction form
    329,788.20/494,682.30 = 80,470.20/x
  3. Step 3: Cross multiply
    329,788.20x = 494,682.30 × 80,470.20
  4. Step 4: Simplify right side
    329,788.20x = 39,807,183,617.46
  5. Step 5: Solve for x
    x = 39,807,183,617.46/329,788.20
  6. Step 6: Final answer
    x = 120,705.30

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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.