Home / 1,311,969.40-1,968,230.26-743,622.82

Finding the Fourth Proportional to 1,311,969.40, 1,968,230.26 and 743,622.82

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Solution

The fourth proportional to 1,311,969.40, 1,968,230.26 and 743,622.82 is: 1,115,590.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,969.40 : 1,968,230.26 = 743,622.82 : x
  2. Step 2: Convert to fraction form
    1,311,969.40/1,968,230.26 = 743,622.82/x
  3. Step 3: Cross multiply
    1,311,969.40x = 1,968,230.26 × 743,622.82
  4. Step 4: Simplify right side
    1,311,969.40x = 1,463,620,936,350.53
  5. Step 5: Solve for x
    x = 1,463,620,936,350.53/1,311,969.40
  6. Step 6: Final answer
    x = 1,115,590.76

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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.