Home / 1,243,936.26-1,863,960.38-865,596.20

Finding the Fourth Proportional to 1,243,936.26, 1,863,960.38 and 865,596.20

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Solution

The fourth proportional to 1,243,936.26, 1,863,960.38 and 865,596.20 is: 1,297,041.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,936.26 : 1,863,960.38 = 865,596.20 : x
  2. Step 2: Convert to fraction form
    1,243,936.26/1,863,960.38 = 865,596.20/x
  3. Step 3: Cross multiply
    1,243,936.26x = 1,863,960.38 × 865,596.20
  4. Step 4: Simplify right side
    1,243,936.26x = 1,613,437,021,878.56
  5. Step 5: Solve for x
    x = 1,613,437,021,878.56/1,243,936.26
  6. Step 6: Final answer
    x = 1,297,041.56

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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.