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Finding the Fourth Proportional to 635,969.20, 877,651.38 and 349,494.08

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Solution

The fourth proportional to 635,969.20, 877,651.38 and 349,494.08 is: 482,309.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,969.20 : 877,651.38 = 349,494.08 : x
  2. Step 2: Convert to fraction form
    635,969.20/877,651.38 = 349,494.08/x
  3. Step 3: Cross multiply
    635,969.20x = 877,651.38 × 349,494.08
  4. Step 4: Simplify right side
    635,969.20x = 306,733,961,613.83
  5. Step 5: Solve for x
    x = 306,733,961,613.83/635,969.20
  6. Step 6: Final answer
    x = 482,309.46

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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.