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Finding the Fourth Proportional to 635,145.86, 876,469.14 and 377,033.86

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Solution

The fourth proportional to 635,145.86, 876,469.14 and 377,033.86 is: 520,287.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,145.86 : 876,469.14 = 377,033.86 : x
  2. Step 2: Convert to fraction form
    635,145.86/876,469.14 = 377,033.86/x
  3. Step 3: Cross multiply
    635,145.86x = 876,469.14 × 377,033.86
  4. Step 4: Simplify right side
    635,145.86x = 330,458,540,833.91
  5. Step 5: Solve for x
    x = 330,458,540,833.91/635,145.86
  6. Step 6: Final answer
    x = 520,287.64

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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.