Home / 455,184.31-628,406.04-273,940.79

Finding the Fourth Proportional to 455,184.31, 628,406.04 and 273,940.79

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Solution

The fourth proportional to 455,184.31, 628,406.04 and 273,940.79 is: 378,189.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,184.31 : 628,406.04 = 273,940.79 : x
  2. Step 2: Convert to fraction form
    455,184.31/628,406.04 = 273,940.79/x
  3. Step 3: Cross multiply
    455,184.31x = 628,406.04 × 273,940.79
  4. Step 4: Simplify right side
    455,184.31x = 172,146,043,896.34
  5. Step 5: Solve for x
    x = 172,146,043,896.34/455,184.31
  6. Step 6: Final answer
    x = 378,189.76

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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.