Home / 1,431,839.12-1,975,943.04-787,299.85

Finding the Fourth Proportional to 1,431,839.12, 1,975,943.04 and 787,299.85

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Solution

The fourth proportional to 1,431,839.12, 1,975,943.04 and 787,299.85 is: 1,086,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,839.12 : 1,975,943.04 = 787,299.85 : x
  2. Step 2: Convert to fraction form
    1,431,839.12/1,975,943.04 = 787,299.85/x
  3. Step 3: Cross multiply
    1,431,839.12x = 1,975,943.04 × 787,299.85
  4. Step 4: Simplify right side
    1,431,839.12x = 1,555,659,649,120.83
  5. Step 5: Solve for x
    x = 1,555,659,649,120.83/1,431,839.12
  6. Step 6: Final answer
    x = 1,086,476.57

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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.