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Finding the Fourth Proportional to 635,355.12, 876,805.38 and 344,979.03

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Solution

The fourth proportional to 635,355.12, 876,805.38 and 344,979.03 is: 476,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,355.12 : 876,805.38 = 344,979.03 : x
  2. Step 2: Convert to fraction form
    635,355.12/876,805.38 = 344,979.03/x
  3. Step 3: Cross multiply
    635,355.12x = 876,805.38 × 344,979.03
  4. Step 4: Simplify right side
    635,355.12x = 302,479,469,491.18
  5. Step 5: Solve for x
    x = 302,479,469,491.18/635,355.12
  6. Step 6: Final answer
    x = 476,079.38

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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.