Home / 1,218,729.58-1,826,974.87-419,821.22

Finding the Fourth Proportional to 1,218,729.58, 1,826,974.87 and 419,821.22

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Solution

The fourth proportional to 1,218,729.58, 1,826,974.87 and 419,821.22 is: 629,346.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,729.58 : 1,826,974.87 = 419,821.22 : x
  2. Step 2: Convert to fraction form
    1,218,729.58/1,826,974.87 = 419,821.22/x
  3. Step 3: Cross multiply
    1,218,729.58x = 1,826,974.87 × 419,821.22
  4. Step 4: Simplify right side
    1,218,729.58x = 767,002,818,832.74
  5. Step 5: Solve for x
    x = 767,002,818,832.74/1,218,729.58
  6. Step 6: Final answer
    x = 629,346.19

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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.