Home / 837,767.70-1,256,665.41-405,233.78

Finding the Fourth Proportional to 837,767.70, 1,256,665.41 and 405,233.78

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Solution

The fourth proportional to 837,767.70, 1,256,665.41 and 405,233.78 is: 607,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,767.70 : 1,256,665.41 = 405,233.78 : x
  2. Step 2: Convert to fraction form
    837,767.70/1,256,665.41 = 405,233.78/x
  3. Step 3: Cross multiply
    837,767.70x = 1,256,665.41 × 405,233.78
  4. Step 4: Simplify right side
    837,767.70x = 509,243,268,006.22
  5. Step 5: Solve for x
    x = 509,243,268,006.22/837,767.70
  6. Step 6: Final answer
    x = 607,857.37

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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.