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Finding the Fourth Proportional to 635,980.80, 953,725.68 and 271,010.64

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Solution

The fourth proportional to 635,980.80, 953,725.68 and 271,010.64 is: 406,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,980.80 : 953,725.68 = 271,010.64 : x
  2. Step 2: Convert to fraction form
    635,980.80/953,725.68 = 271,010.64/x
  3. Step 3: Cross multiply
    635,980.80x = 953,725.68 × 271,010.64
  4. Step 4: Simplify right side
    635,980.80x = 258,469,806,921.24
  5. Step 5: Solve for x
    x = 258,469,806,921.24/635,980.80
  6. Step 6: Final answer
    x = 406,411.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.