Home / 1,040,649.88-1,561,243.41-320,975.31

Finding the Fourth Proportional to 1,040,649.88, 1,561,243.41 and 320,975.31

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Solution

The fourth proportional to 1,040,649.88, 1,561,243.41 and 320,975.31 is: 481,545.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,649.88 : 1,561,243.41 = 320,975.31 : x
  2. Step 2: Convert to fraction form
    1,040,649.88/1,561,243.41 = 320,975.31/x
  3. Step 3: Cross multiply
    1,040,649.88x = 1,561,243.41 × 320,975.31
  4. Step 4: Simplify right side
    1,040,649.88x = 501,120,584,582.88
  5. Step 5: Solve for x
    x = 501,120,584,582.88/1,040,649.88
  6. Step 6: Final answer
    x = 481,545.81

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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.