Home / 1,321,809.70-1,982,757.66-629,226.40

Finding the Fourth Proportional to 1,321,809.70, 1,982,757.66 and 629,226.40

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Solution

The fourth proportional to 1,321,809.70, 1,982,757.66 and 629,226.40 is: 943,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,809.70 : 1,982,757.66 = 629,226.40 : x
  2. Step 2: Convert to fraction form
    1,321,809.70/1,982,757.66 = 629,226.40/x
  3. Step 3: Cross multiply
    1,321,809.70x = 1,982,757.66 × 629,226.40
  4. Step 4: Simplify right side
    1,321,809.70x = 1,247,603,464,474.22
  5. Step 5: Solve for x
    x = 1,247,603,464,474.22/1,321,809.70
  6. Step 6: Final answer
    x = 943,860.12

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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.