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Finding the Fourth Proportional to 538,936.30, 807,354.33 and 328,051.18

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Solution

The fourth proportional to 538,936.30, 807,354.33 and 328,051.18 is: 491,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,936.30 : 807,354.33 = 328,051.18 : x
  2. Step 2: Convert to fraction form
    538,936.30/807,354.33 = 328,051.18/x
  3. Step 3: Cross multiply
    538,936.30x = 807,354.33 × 328,051.18
  4. Step 4: Simplify right side
    538,936.30x = 264,853,540,634.61
  5. Step 5: Solve for x
    x = 264,853,540,634.61/538,936.30
  6. Step 6: Final answer
    x = 491,437.56

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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.