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Finding the Fourth Proportional to 523,067.52, 721,886.33 and 308,276.79

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Solution

The fourth proportional to 523,067.52, 721,886.33 and 308,276.79 is: 425,453.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,067.52 : 721,886.33 = 308,276.79 : x
  2. Step 2: Convert to fraction form
    523,067.52/721,886.33 = 308,276.79/x
  3. Step 3: Cross multiply
    523,067.52x = 721,886.33 × 308,276.79
  4. Step 4: Simplify right side
    523,067.52x = 222,540,796,886.86
  5. Step 5: Solve for x
    x = 222,540,796,886.86/523,067.52
  6. Step 6: Final answer
    x = 425,453.29

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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.