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Finding the Fourth Proportional to 635,910.72, 877,546.95 and 349,424.66

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Solution

The fourth proportional to 635,910.72, 877,546.95 and 349,424.66 is: 482,200.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,910.72 : 877,546.95 = 349,424.66 : x
  2. Step 2: Convert to fraction form
    635,910.72/877,546.95 = 349,424.66/x
  3. Step 3: Cross multiply
    635,910.72x = 877,546.95 × 349,424.66
  4. Step 4: Simplify right side
    635,910.72x = 306,636,540,250.05
  5. Step 5: Solve for x
    x = 306,636,540,250.05/635,910.72
  6. Step 6: Final answer
    x = 482,200.61

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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.