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Finding the Fourth Proportional to 635,443.44, 876,426 and 431,651.46

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Solution

The fourth proportional to 635,443.44, 876,426 and 431,651.46 is: 595,348.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,443.44 : 876,426 = 431,651.46 : x
  2. Step 2: Convert to fraction form
    635,443.44/876,426 = 431,651.46/x
  3. Step 3: Cross multiply
    635,443.44x = 876,426 × 431,651.46
  4. Step 4: Simplify right side
    635,443.44x = 378,310,562,481.96
  5. Step 5: Solve for x
    x = 378,310,562,481.96/635,443.44
  6. Step 6: Final answer
    x = 595,348.91

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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.