Home / 980,309.36-1,469,660.52-348,863.60

Finding the Fourth Proportional to 980,309.36, 1,469,660.52 and 348,863.60

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Solution

The fourth proportional to 980,309.36, 1,469,660.52 and 348,863.60 is: 523,009.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,309.36 : 1,469,660.52 = 348,863.60 : x
  2. Step 2: Convert to fraction form
    980,309.36/1,469,660.52 = 348,863.60/x
  3. Step 3: Cross multiply
    980,309.36x = 1,469,660.52 × 348,863.60
  4. Step 4: Simplify right side
    980,309.36x = 512,711,059,785.07
  5. Step 5: Solve for x
    x = 512,711,059,785.07/980,309.36
  6. Step 6: Final answer
    x = 523,009.45

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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.