Home / 491,709.44-678,579.95-273,917.85

Finding the Fourth Proportional to 491,709.44, 678,579.95 and 273,917.85

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Solution

The fourth proportional to 491,709.44, 678,579.95 and 273,917.85 is: 378,018.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,709.44 : 678,579.95 = 273,917.85 : x
  2. Step 2: Convert to fraction form
    491,709.44/678,579.95 = 273,917.85/x
  3. Step 3: Cross multiply
    491,709.44x = 678,579.95 × 273,917.85
  4. Step 4: Simplify right side
    491,709.44x = 185,875,159,587.52
  5. Step 5: Solve for x
    x = 185,875,159,587.52/491,709.44
  6. Step 6: Final answer
    x = 378,018.29

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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.