Home / 330,631.20-496,335.60-328,298.40

Finding the Fourth Proportional to 330,631.20, 496,335.60 and 328,298.40

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Solution

The fourth proportional to 330,631.20, 496,335.60 and 328,298.40 is: 492,833.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,631.20 : 496,335.60 = 328,298.40 : x
  2. Step 2: Convert to fraction form
    330,631.20/496,335.60 = 328,298.40/x
  3. Step 3: Cross multiply
    330,631.20x = 496,335.60 × 328,298.40
  4. Step 4: Simplify right side
    330,631.20x = 162,946,183,343.04
  5. Step 5: Solve for x
    x = 162,946,183,343.04/330,631.20
  6. Step 6: Final answer
    x = 492,833.66

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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.