Home / 327,056.36-490,579.68-90,393.80

Finding the Fourth Proportional to 327,056.36, 490,579.68 and 90,393.80

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Solution

The fourth proportional to 327,056.36, 490,579.68 and 90,393.80 is: 135,589.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,056.36 : 490,579.68 = 90,393.80 : x
  2. Step 2: Convert to fraction form
    327,056.36/490,579.68 = 90,393.80/x
  3. Step 3: Cross multiply
    327,056.36x = 490,579.68 × 90,393.80
  4. Step 4: Simplify right side
    327,056.36x = 44,345,361,477.98
  5. Step 5: Solve for x
    x = 44,345,361,477.98/327,056.36
  6. Step 6: Final answer
    x = 135,589.36

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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.