Home / 1,431,899.88-1,976,021.46-787,361.82

Finding the Fourth Proportional to 1,431,899.88, 1,976,021.46 and 787,361.82

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Solution

The fourth proportional to 1,431,899.88, 1,976,021.46 and 787,361.82 is: 1,086,559.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,899.88 : 1,976,021.46 = 787,361.82 : x
  2. Step 2: Convert to fraction form
    1,431,899.88/1,976,021.46 = 787,361.82/x
  3. Step 3: Cross multiply
    1,431,899.88x = 1,976,021.46 × 787,361.82
  4. Step 4: Simplify right side
    1,431,899.88x = 1,555,843,853,104.66
  5. Step 5: Solve for x
    x = 1,555,843,853,104.66/1,431,899.88
  6. Step 6: Final answer
    x = 1,086,559.11

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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.