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Finding the Fourth Proportional to 635,076.78, 876,402.63 and 348,601.74

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Solution

The fourth proportional to 635,076.78, 876,402.63 and 348,601.74 is: 481,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,076.78 : 876,402.63 = 348,601.74 : x
  2. Step 2: Convert to fraction form
    635,076.78/876,402.63 = 348,601.74/x
  3. Step 3: Cross multiply
    635,076.78x = 876,402.63 × 348,601.74
  4. Step 4: Simplify right side
    635,076.78x = 305,515,481,758.58
  5. Step 5: Solve for x
    x = 305,515,481,758.58/635,076.78
  6. Step 6: Final answer
    x = 481,068.58

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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.