Home / 491,713.06-678,584.96-273,921.48

Finding the Fourth Proportional to 491,713.06, 678,584.96 and 273,921.48

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Solution

The fourth proportional to 491,713.06, 678,584.96 and 273,921.48 is: 378,023.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,713.06 : 678,584.96 = 273,921.48 : x
  2. Step 2: Convert to fraction form
    491,713.06/678,584.96 = 273,921.48/x
  3. Step 3: Cross multiply
    491,713.06x = 678,584.96 × 273,921.48
  4. Step 4: Simplify right side
    491,713.06x = 185,878,996,548.94
  5. Step 5: Solve for x
    x = 185,878,996,548.94/491,713.06
  6. Step 6: Final answer
    x = 378,023.31

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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.