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Finding the Fourth Proportional to 539,844.21, 810,264.53 and 273,791.61

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Solution

The fourth proportional to 539,844.21, 810,264.53 and 273,791.61 is: 410,940.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,844.21 : 810,264.53 = 273,791.61 : x
  2. Step 2: Convert to fraction form
    539,844.21/810,264.53 = 273,791.61/x
  3. Step 3: Cross multiply
    539,844.21x = 810,264.53 × 273,791.61
  4. Step 4: Simplify right side
    539,844.21x = 221,843,630,879.07
  5. Step 5: Solve for x
    x = 221,843,630,879.07/539,844.21
  6. Step 6: Final answer
    x = 410,940.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.