Home / 1,987,433.82-2,981,151.66-639,596.27

Finding the Fourth Proportional to 1,987,433.82, 2,981,151.66 and 639,596.27

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Solution

The fourth proportional to 1,987,433.82, 2,981,151.66 and 639,596.27 is: 959,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,433.82 : 2,981,151.66 = 639,596.27 : x
  2. Step 2: Convert to fraction form
    1,987,433.82/2,981,151.66 = 639,596.27/x
  3. Step 3: Cross multiply
    1,987,433.82x = 2,981,151.66 × 639,596.27
  4. Step 4: Simplify right side
    1,987,433.82x = 1,906,733,467,134.55
  5. Step 5: Solve for x
    x = 1,906,733,467,134.55/1,987,433.82
  6. Step 6: Final answer
    x = 959,394.70

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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.