Home / 330,641.20-496,998.60-324,420.40

Finding the Fourth Proportional to 330,641.20, 496,998.60 and 324,420.40

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Solution

The fourth proportional to 330,641.20, 496,998.60 and 324,420.40 is: 487,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,641.20 : 496,998.60 = 324,420.40 : x
  2. Step 2: Convert to fraction form
    330,641.20/496,998.60 = 324,420.40/x
  3. Step 3: Cross multiply
    330,641.20x = 496,998.60 × 324,420.40
  4. Step 4: Simplify right side
    330,641.20x = 161,236,484,611.44
  5. Step 5: Solve for x
    x = 161,236,484,611.44/330,641.20
  6. Step 6: Final answer
    x = 487,647.89

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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.