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Finding the Fourth Proportional to 635,493.39, 876,977.31 and 345,102.15

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Solution

The fourth proportional to 635,493.39, 876,977.31 and 345,102.15 is: 476,239.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,493.39 : 876,977.31 = 345,102.15 : x
  2. Step 2: Convert to fraction form
    635,493.39/876,977.31 = 345,102.15/x
  3. Step 3: Cross multiply
    635,493.39x = 876,977.31 × 345,102.15
  4. Step 4: Simplify right side
    635,493.39x = 302,646,755,182.22
  5. Step 5: Solve for x
    x = 302,646,755,182.22/635,493.39
  6. Step 6: Final answer
    x = 476,239.03

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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.