Home / 1,326,887.88-1,990,399.88-380,266.80

Finding the Fourth Proportional to 1,326,887.88, 1,990,399.88 and 380,266.80

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Solution

The fourth proportional to 1,326,887.88, 1,990,399.88 and 380,266.80 is: 570,419.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,887.88 : 1,990,399.88 = 380,266.80 : x
  2. Step 2: Convert to fraction form
    1,326,887.88/1,990,399.88 = 380,266.80/x
  3. Step 3: Cross multiply
    1,326,887.88x = 1,990,399.88 × 380,266.80
  4. Step 4: Simplify right side
    1,326,887.88x = 756,882,993,087.98
  5. Step 5: Solve for x
    x = 756,882,993,087.98/1,326,887.88
  6. Step 6: Final answer
    x = 570,419.71

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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.