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Finding the Fourth Proportional to 544,654.10, 816,987.09 and 165,636.47

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Solution

The fourth proportional to 544,654.10, 816,987.09 and 165,636.47 is: 248,456.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,654.10 : 816,987.09 = 165,636.47 : x
  2. Step 2: Convert to fraction form
    544,654.10/816,987.09 = 165,636.47/x
  3. Step 3: Cross multiply
    544,654.10x = 816,987.09 × 165,636.47
  4. Step 4: Simplify right side
    544,654.10x = 135,322,857,623.17
  5. Step 5: Solve for x
    x = 135,322,857,623.17/544,654.10
  6. Step 6: Final answer
    x = 248,456.51

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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.