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Finding the Fourth Proportional to 538,229.78, 807,064.32 and 253,843.96

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Solution

The fourth proportional to 538,229.78, 807,064.32 and 253,843.96 is: 380,633.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,229.78 : 807,064.32 = 253,843.96 : x
  2. Step 2: Convert to fraction form
    538,229.78/807,064.32 = 253,843.96/x
  3. Step 3: Cross multiply
    538,229.78x = 807,064.32 × 253,843.96
  4. Step 4: Simplify right side
    538,229.78x = 204,868,402,963.51
  5. Step 5: Solve for x
    x = 204,868,402,963.51/538,229.78
  6. Step 6: Final answer
    x = 380,633.72

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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.