Home / 330,640.20-496,997.10-324,419.40

Finding the Fourth Proportional to 330,640.20, 496,997.10 and 324,419.40

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Solution

The fourth proportional to 330,640.20, 496,997.10 and 324,419.40 is: 487,646.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,640.20 : 496,997.10 = 324,419.40 : x
  2. Step 2: Convert to fraction form
    330,640.20/496,997.10 = 324,419.40/x
  3. Step 3: Cross multiply
    330,640.20x = 496,997.10 × 324,419.40
  4. Step 4: Simplify right side
    330,640.20x = 161,235,500,983.74
  5. Step 5: Solve for x
    x = 161,235,500,983.74/330,640.20
  6. Step 6: Final answer
    x = 487,646.39

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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.