Home / 1,489,452.70-2,055,383.32-810,391.90

Finding the Fourth Proportional to 1,489,452.70, 2,055,383.32 and 810,391.90

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Solution

The fourth proportional to 1,489,452.70, 2,055,383.32 and 810,391.90 is: 1,118,307.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,452.70 : 2,055,383.32 = 810,391.90 : x
  2. Step 2: Convert to fraction form
    1,489,452.70/2,055,383.32 = 810,391.90/x
  3. Step 3: Cross multiply
    1,489,452.70x = 2,055,383.32 × 810,391.90
  4. Step 4: Simplify right side
    1,489,452.70x = 1,665,665,993,923.11
  5. Step 5: Solve for x
    x = 1,665,665,993,923.11/1,489,452.70
  6. Step 6: Final answer
    x = 1,118,307.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.