Home / 491,712.06-678,583.58-273,920.48

Finding the Fourth Proportional to 491,712.06, 678,583.58 and 273,920.48

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Solution

The fourth proportional to 491,712.06, 678,583.58 and 273,920.48 is: 378,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,712.06 : 678,583.58 = 273,920.48 : x
  2. Step 2: Convert to fraction form
    491,712.06/678,583.58 = 273,920.48/x
  3. Step 3: Cross multiply
    491,712.06x = 678,583.58 × 273,920.48
  4. Step 4: Simplify right side
    491,712.06x = 185,877,935,191.20
  5. Step 5: Solve for x
    x = 185,877,935,191.20/491,712.06
  6. Step 6: Final answer
    x = 378,021.92

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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.