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Finding the Fourth Proportional to 635,282.64, 877,100.32 and 393,823.26

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Solution

The fourth proportional to 635,282.64, 877,100.32 and 393,823.26 is: 543,730.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,282.64 : 877,100.32 = 393,823.26 : x
  2. Step 2: Convert to fraction form
    635,282.64/877,100.32 = 393,823.26/x
  3. Step 3: Cross multiply
    635,282.64x = 877,100.32 × 393,823.26
  4. Step 4: Simplify right side
    635,282.64x = 345,422,507,369.44
  5. Step 5: Solve for x
    x = 345,422,507,369.44/635,282.64
  6. Step 6: Final answer
    x = 543,730.44

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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.