Home / 1,231,736.44-1,699,549.73-687,788.53

Finding the Fourth Proportional to 1,231,736.44, 1,699,549.73 and 687,788.53

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Solution

The fourth proportional to 1,231,736.44, 1,699,549.73 and 687,788.53 is: 949,010.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,736.44 : 1,699,549.73 = 687,788.53 : x
  2. Step 2: Convert to fraction form
    1,231,736.44/1,699,549.73 = 687,788.53/x
  3. Step 3: Cross multiply
    1,231,736.44x = 1,699,549.73 × 687,788.53
  4. Step 4: Simplify right side
    1,231,736.44x = 1,168,930,810,458.60
  5. Step 5: Solve for x
    x = 1,168,930,810,458.60/1,231,736.44
  6. Step 6: Final answer
    x = 949,010.50

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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.