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Finding the Fourth Proportional to 635,120.80, 876,476.64 and 348,667

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Solution

The fourth proportional to 635,120.80, 876,476.64 and 348,667 is: 481,165.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,120.80 : 876,476.64 = 348,667 : x
  2. Step 2: Convert to fraction form
    635,120.80/876,476.64 = 348,667/x
  3. Step 3: Cross multiply
    635,120.80x = 876,476.64 × 348,667
  4. Step 4: Simplify right side
    635,120.80x = 305,598,480,638.88
  5. Step 5: Solve for x
    x = 305,598,480,638.88/635,120.80
  6. Step 6: Final answer
    x = 481,165.91

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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.