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Finding the Fourth Proportional to 635,305.28, 876,715.20 and 348,822.88

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Solution

The fourth proportional to 635,305.28, 876,715.20 and 348,822.88 is: 481,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,305.28 : 876,715.20 = 348,822.88 : x
  2. Step 2: Convert to fraction form
    635,305.28/876,715.20 = 348,822.88/x
  3. Step 3: Cross multiply
    635,305.28x = 876,715.20 × 348,822.88
  4. Step 4: Simplify right side
    635,305.28x = 305,818,321,003.78
  5. Step 5: Solve for x
    x = 305,818,321,003.78/635,305.28
  6. Step 6: Final answer
    x = 481,372.23

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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.