Home / 412,949.28-619,365.60-132,430.08

Finding the Fourth Proportional to 412,949.28, 619,365.60 and 132,430.08

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Solution

The fourth proportional to 412,949.28, 619,365.60 and 132,430.08 is: 198,626.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,949.28 : 619,365.60 = 132,430.08 : x
  2. Step 2: Convert to fraction form
    412,949.28/619,365.60 = 132,430.08/x
  3. Step 3: Cross multiply
    412,949.28x = 619,365.60 × 132,430.08
  4. Step 4: Simplify right side
    412,949.28x = 82,022,635,957.25
  5. Step 5: Solve for x
    x = 82,022,635,957.25/412,949.28
  6. Step 6: Final answer
    x = 198,626.42

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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.