Home / 455,186.06-628,408.46-273,942.54

Finding the Fourth Proportional to 455,186.06, 628,408.46 and 273,942.54

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Solution

The fourth proportional to 455,186.06, 628,408.46 and 273,942.54 is: 378,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,186.06 : 628,408.46 = 273,942.54 : x
  2. Step 2: Convert to fraction form
    455,186.06/628,408.46 = 273,942.54/x
  3. Step 3: Cross multiply
    455,186.06x = 628,408.46 × 273,942.54
  4. Step 4: Simplify right side
    455,186.06x = 172,147,809,689.89
  5. Step 5: Solve for x
    x = 172,147,809,689.89/455,186.06
  6. Step 6: Final answer
    x = 378,192.18

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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.