Home / 979,863.36-1,469,993.76-305,917.44

Finding the Fourth Proportional to 979,863.36, 1,469,993.76 and 305,917.44

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Solution

The fourth proportional to 979,863.36, 1,469,993.76 and 305,917.44 is: 458,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,863.36 : 1,469,993.76 = 305,917.44 : x
  2. Step 2: Convert to fraction form
    979,863.36/1,469,993.76 = 305,917.44/x
  3. Step 3: Cross multiply
    979,863.36x = 1,469,993.76 × 305,917.44
  4. Step 4: Simplify right side
    979,863.36x = 449,696,727,875.17
  5. Step 5: Solve for x
    x = 449,696,727,875.17/979,863.36
  6. Step 6: Final answer
    x = 458,938.20

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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.