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Finding the Fourth Proportional to 635,465.31, 876,960.05 and 349,003.85

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Solution

The fourth proportional to 635,465.31, 876,960.05 and 349,003.85 is: 481,635.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,465.31 : 876,960.05 = 349,003.85 : x
  2. Step 2: Convert to fraction form
    635,465.31/876,960.05 = 349,003.85/x
  3. Step 3: Cross multiply
    635,465.31x = 876,960.05 × 349,003.85
  4. Step 4: Simplify right side
    635,465.31x = 306,062,427,616.37
  5. Step 5: Solve for x
    x = 306,062,427,616.37/635,465.31
  6. Step 6: Final answer
    x = 481,635.15

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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.