Home / 330,576.20-495,864.30-328,118.60

Finding the Fourth Proportional to 330,576.20, 495,864.30 and 328,118.60

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Solution

The fourth proportional to 330,576.20, 495,864.30 and 328,118.60 is: 492,177.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,576.20 : 495,864.30 = 328,118.60 : x
  2. Step 2: Convert to fraction form
    330,576.20/495,864.30 = 328,118.60/x
  3. Step 3: Cross multiply
    330,576.20x = 495,864.30 × 328,118.60
  4. Step 4: Simplify right side
    330,576.20x = 162,702,299,905.98
  5. Step 5: Solve for x
    x = 162,702,299,905.98/330,576.20
  6. Step 6: Final answer
    x = 492,177.90

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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.