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Finding the Fourth Proportional to 635,839.88, 877,458.87 and 349,359.98

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Solution

The fourth proportional to 635,839.88, 877,458.87 and 349,359.98 is: 482,116.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,839.88 : 877,458.87 = 349,359.98 : x
  2. Step 2: Convert to fraction form
    635,839.88/877,458.87 = 349,359.98/x
  3. Step 3: Cross multiply
    635,839.88x = 877,458.87 × 349,359.98
  4. Step 4: Simplify right side
    635,839.88x = 306,549,008,886.73
  5. Step 5: Solve for x
    x = 306,549,008,886.73/635,839.88
  6. Step 6: Final answer
    x = 482,116.68

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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.