Home / 1,305,414.36-1,956,255.30-743,287.32

Finding the Fourth Proportional to 1,305,414.36, 1,956,255.30 and 743,287.32

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Solution

The fourth proportional to 1,305,414.36, 1,956,255.30 and 743,287.32 is: 1,113,868.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,414.36 : 1,956,255.30 = 743,287.32 : x
  2. Step 2: Convert to fraction form
    1,305,414.36/1,956,255.30 = 743,287.32/x
  3. Step 3: Cross multiply
    1,305,414.36x = 1,956,255.30 × 743,287.32
  4. Step 4: Simplify right side
    1,305,414.36x = 1,454,059,759,172.80
  5. Step 5: Solve for x
    x = 1,454,059,759,172.80/1,305,414.36
  6. Step 6: Final answer
    x = 1,113,868.37

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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.