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Finding the Fourth Proportional to 539,843.04, 810,255.84 and 287,335.44

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Solution

The fourth proportional to 539,843.04, 810,255.84 and 287,335.44 is: 431,264.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,843.04 : 810,255.84 = 287,335.44 : x
  2. Step 2: Convert to fraction form
    539,843.04/810,255.84 = 287,335.44/x
  3. Step 3: Cross multiply
    539,843.04x = 810,255.84 × 287,335.44
  4. Step 4: Simplify right side
    539,843.04x = 232,815,218,298.97
  5. Step 5: Solve for x
    x = 232,815,218,298.97/539,843.04
  6. Step 6: Final answer
    x = 431,264.65

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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.