Home / 1,311,910.36-1,809,817.43-767,709.23

Finding the Fourth Proportional to 1,311,910.36, 1,809,817.43 and 767,709.23

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Solution

The fourth proportional to 1,311,910.36, 1,809,817.43 and 767,709.23 is: 1,059,076.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,910.36 : 1,809,817.43 = 767,709.23 : x
  2. Step 2: Convert to fraction form
    1,311,910.36/1,809,817.43 = 767,709.23/x
  3. Step 3: Cross multiply
    1,311,910.36x = 1,809,817.43 × 767,709.23
  4. Step 4: Simplify right side
    1,311,910.36x = 1,389,413,532,738.25
  5. Step 5: Solve for x
    x = 1,389,413,532,738.25/1,311,910.36
  6. Step 6: Final answer
    x = 1,059,076.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.