Home / 853,361.36-1,280,091.16-320,887

Finding the Fourth Proportional to 853,361.36, 1,280,091.16 and 320,887

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Solution

The fourth proportional to 853,361.36, 1,280,091.16 and 320,887 is: 481,348.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,361.36 : 1,280,091.16 = 320,887 : x
  2. Step 2: Convert to fraction form
    853,361.36/1,280,091.16 = 320,887/x
  3. Step 3: Cross multiply
    853,361.36x = 1,280,091.16 × 320,887
  4. Step 4: Simplify right side
    853,361.36x = 410,764,612,058.92
  5. Step 5: Solve for x
    x = 410,764,612,058.92/853,361.36
  6. Step 6: Final answer
    x = 481,348.97

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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.