Home / 412,940.28-619,352.10-132,421.08

Finding the Fourth Proportional to 412,940.28, 619,352.10 and 132,421.08

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Solution

The fourth proportional to 412,940.28, 619,352.10 and 132,421.08 is: 198,612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,940.28 : 619,352.10 = 132,421.08 : x
  2. Step 2: Convert to fraction form
    412,940.28/619,352.10 = 132,421.08/x
  3. Step 3: Cross multiply
    412,940.28x = 619,352.10 × 132,421.08
  4. Step 4: Simplify right side
    412,940.28x = 82,015,273,982.27
  5. Step 5: Solve for x
    x = 82,015,273,982.27/412,940.28
  6. Step 6: Final answer
    x = 198,612.92

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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.