Home / 428,669.44-642,997.68-179,351.44

Finding the Fourth Proportional to 428,669.44, 642,997.68 and 179,351.44

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Solution

The fourth proportional to 428,669.44, 642,997.68 and 179,351.44 is: 269,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,669.44 : 642,997.68 = 179,351.44 : x
  2. Step 2: Convert to fraction form
    428,669.44/642,997.68 = 179,351.44/x
  3. Step 3: Cross multiply
    428,669.44x = 642,997.68 × 179,351.44
  4. Step 4: Simplify right side
    428,669.44x = 115,322,559,824.66
  5. Step 5: Solve for x
    x = 115,322,559,824.66/428,669.44
  6. Step 6: Final answer
    x = 269,024.45

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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.