Home / 1,311,770.80-1,963,208.32-806,649.12

Finding the Fourth Proportional to 1,311,770.80, 1,963,208.32 and 806,649.12

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Solution

The fourth proportional to 1,311,770.80, 1,963,208.32 and 806,649.12 is: 1,207,238.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,770.80 : 1,963,208.32 = 806,649.12 : x
  2. Step 2: Convert to fraction form
    1,311,770.80/1,963,208.32 = 806,649.12/x
  3. Step 3: Cross multiply
    1,311,770.80x = 1,963,208.32 × 806,649.12
  4. Step 4: Simplify right side
    1,311,770.80x = 1,583,620,263,704.68
  5. Step 5: Solve for x
    x = 1,583,620,263,704.68/1,311,770.80
  6. Step 6: Final answer
    x = 1,207,238.54

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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.