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Finding the Fourth Proportional to 538,517.45, 743,051.72 and 323,579.09

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Solution

The fourth proportional to 538,517.45, 743,051.72 and 323,579.09 is: 446,477.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,517.45 : 743,051.72 = 323,579.09 : x
  2. Step 2: Convert to fraction form
    538,517.45/743,051.72 = 323,579.09/x
  3. Step 3: Cross multiply
    538,517.45x = 743,051.72 × 323,579.09
  4. Step 4: Simplify right side
    538,517.45x = 240,435,994,047.38
  5. Step 5: Solve for x
    x = 240,435,994,047.38/538,517.45
  6. Step 6: Final answer
    x = 446,477.63

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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.