Home / 1,012,801.92-1,520,273.52-989,930.64

Finding the Fourth Proportional to 1,012,801.92, 1,520,273.52 and 989,930.64

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Solution

The fourth proportional to 1,012,801.92, 1,520,273.52 and 989,930.64 is: 1,485,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,801.92 : 1,520,273.52 = 989,930.64 : x
  2. Step 2: Convert to fraction form
    1,012,801.92/1,520,273.52 = 989,930.64/x
  3. Step 3: Cross multiply
    1,012,801.92x = 1,520,273.52 × 989,930.64
  4. Step 4: Simplify right side
    1,012,801.92x = 1,504,965,338,628.65
  5. Step 5: Solve for x
    x = 1,504,965,338,628.65/1,012,801.92
  6. Step 6: Final answer
    x = 1,485,942.42

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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.