Home / 1,489,136.52-2,049,820.38-1,297,821

Finding the Fourth Proportional to 1,489,136.52, 2,049,820.38 and 1,297,821

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Solution

The fourth proportional to 1,489,136.52, 2,049,820.38 and 1,297,821 is: 1,786,471.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,136.52 : 2,049,820.38 = 1,297,821 : x
  2. Step 2: Convert to fraction form
    1,489,136.52/2,049,820.38 = 1,297,821/x
  3. Step 3: Cross multiply
    1,489,136.52x = 2,049,820.38 × 1,297,821
  4. Step 4: Simplify right side
    1,489,136.52x = 2,660,299,935,391.98
  5. Step 5: Solve for x
    x = 2,660,299,935,391.98/1,489,136.52
  6. Step 6: Final answer
    x = 1,786,471.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.