Home / 324,629.20-486,612.60-219,458.80

Finding the Fourth Proportional to 324,629.20, 486,612.60 and 219,458.80

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Solution

The fourth proportional to 324,629.20, 486,612.60 and 219,458.80 is: 328,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,629.20 : 486,612.60 = 219,458.80 : x
  2. Step 2: Convert to fraction form
    324,629.20/486,612.60 = 219,458.80/x
  3. Step 3: Cross multiply
    324,629.20x = 486,612.60 × 219,458.80
  4. Step 4: Simplify right side
    324,629.20x = 106,791,417,260.88
  5. Step 5: Solve for x
    x = 106,791,417,260.88/324,629.20
  6. Step 6: Final answer
    x = 328,964.30

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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.