Home / 1,419,221.78-1,958,509.97-807,360.18

Finding the Fourth Proportional to 1,419,221.78, 1,958,509.97 and 807,360.18

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Solution

The fourth proportional to 1,419,221.78, 1,958,509.97 and 807,360.18 is: 1,114,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,221.78 : 1,958,509.97 = 807,360.18 : x
  2. Step 2: Convert to fraction form
    1,419,221.78/1,958,509.97 = 807,360.18/x
  3. Step 3: Cross multiply
    1,419,221.78x = 1,958,509.97 × 807,360.18
  4. Step 4: Simplify right side
    1,419,221.78x = 1,581,222,961,910.99
  5. Step 5: Solve for x
    x = 1,581,222,961,910.99/1,419,221.78
  6. Step 6: Final answer
    x = 1,114,147.90

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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.