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Finding the Fourth Proportional to 323,044.82, 484,569.05 and 287,670.09

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Solution

The fourth proportional to 323,044.82, 484,569.05 and 287,670.09 is: 431,506.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,044.82 : 484,569.05 = 287,670.09 : x
  2. Step 2: Convert to fraction form
    323,044.82/484,569.05 = 287,670.09/x
  3. Step 3: Cross multiply
    323,044.82x = 484,569.05 × 287,670.09
  4. Step 4: Simplify right side
    323,044.82x = 139,396,022,224.72
  5. Step 5: Solve for x
    x = 139,396,022,224.72/323,044.82
  6. Step 6: Final answer
    x = 431,506.76

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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.