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Finding the Fourth Proportional to 635,857.96, 877,483.80 and 349,396.60

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Solution

The fourth proportional to 635,857.96, 877,483.80 and 349,396.60 is: 482,167.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,857.96 : 877,483.80 = 349,396.60 : x
  2. Step 2: Convert to fraction form
    635,857.96/877,483.80 = 349,396.60/x
  3. Step 3: Cross multiply
    635,857.96x = 877,483.80 × 349,396.60
  4. Step 4: Simplify right side
    635,857.96x = 306,589,856,275.08
  5. Step 5: Solve for x
    x = 306,589,856,275.08/635,857.96
  6. Step 6: Final answer
    x = 482,167.21

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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.