Home / 458,839.56-687,991.50-178,028.76

Finding the Fourth Proportional to 458,839.56, 687,991.50 and 178,028.76

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Solution

The fourth proportional to 458,839.56, 687,991.50 and 178,028.76 is: 266,939.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,839.56 : 687,991.50 = 178,028.76 : x
  2. Step 2: Convert to fraction form
    458,839.56/687,991.50 = 178,028.76/x
  3. Step 3: Cross multiply
    458,839.56x = 687,991.50 × 178,028.76
  4. Step 4: Simplify right side
    458,839.56x = 122,482,273,635.54
  5. Step 5: Solve for x
    x = 122,482,273,635.54/458,839.56
  6. Step 6: Final answer
    x = 266,939.22

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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.