Home / 1,231,694.84-1,699,742.91-687,850.82

Finding the Fourth Proportional to 1,231,694.84, 1,699,742.91 and 687,850.82

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Solution

The fourth proportional to 1,231,694.84, 1,699,742.91 and 687,850.82 is: 949,236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,694.84 : 1,699,742.91 = 687,850.82 : x
  2. Step 2: Convert to fraction form
    1,231,694.84/1,699,742.91 = 687,850.82/x
  3. Step 3: Cross multiply
    1,231,694.84x = 1,699,742.91 × 687,850.82
  4. Step 4: Simplify right side
    1,231,694.84x = 1,169,169,545,933.97
  5. Step 5: Solve for x
    x = 1,169,169,545,933.97/1,231,694.84
  6. Step 6: Final answer
    x = 949,236.38

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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.