Home / 876,410.82-1,311,157.26-663,791.34

Finding the Fourth Proportional to 876,410.82, 1,311,157.26 and 663,791.34

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Solution

The fourth proportional to 876,410.82, 1,311,157.26 and 663,791.34 is: 993,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,410.82 : 1,311,157.26 = 663,791.34 : x
  2. Step 2: Convert to fraction form
    876,410.82/1,311,157.26 = 663,791.34/x
  3. Step 3: Cross multiply
    876,410.82x = 1,311,157.26 × 663,791.34
  4. Step 4: Simplify right side
    876,410.82x = 870,334,834,566.13
  5. Step 5: Solve for x
    x = 870,334,834,566.13/876,410.82
  6. Step 6: Final answer
    x = 993,067.19

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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.