Home / 1,040,646.80-1,561,238.85-320,972.33

Finding the Fourth Proportional to 1,040,646.80, 1,561,238.85 and 320,972.33

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Solution

The fourth proportional to 1,040,646.80, 1,561,238.85 and 320,972.33 is: 481,541.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,646.80 : 1,561,238.85 = 320,972.33 : x
  2. Step 2: Convert to fraction form
    1,040,646.80/1,561,238.85 = 320,972.33/x
  3. Step 3: Cross multiply
    1,040,646.80x = 1,561,238.85 × 320,972.33
  4. Step 4: Simplify right side
    1,040,646.80x = 501,114,463,564.83
  5. Step 5: Solve for x
    x = 501,114,463,564.83/1,040,646.80
  6. Step 6: Final answer
    x = 481,541.35

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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.