Home / 1,338,630.73-2,008,743.96-485,768.92

Finding the Fourth Proportional to 1,338,630.73, 2,008,743.96 and 485,768.92

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Solution

The fourth proportional to 1,338,630.73, 2,008,743.96 and 485,768.92 is: 728,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,630.73 : 2,008,743.96 = 485,768.92 : x
  2. Step 2: Convert to fraction form
    1,338,630.73/2,008,743.96 = 485,768.92/x
  3. Step 3: Cross multiply
    1,338,630.73x = 2,008,743.96 × 485,768.92
  4. Step 4: Simplify right side
    1,338,630.73x = 975,785,384,005.72
  5. Step 5: Solve for x
    x = 975,785,384,005.72/1,338,630.73
  6. Step 6: Final answer
    x = 728,942.91

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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.