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Finding the Fourth Proportional to 543,983.09, 750,463.79 and 339,679.31

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Solution

The fourth proportional to 543,983.09, 750,463.79 and 339,679.31 is: 468,612.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,983.09 : 750,463.79 = 339,679.31 : x
  2. Step 2: Convert to fraction form
    543,983.09/750,463.79 = 339,679.31/x
  3. Step 3: Cross multiply
    543,983.09x = 750,463.79 × 339,679.31
  4. Step 4: Simplify right side
    543,983.09x = 254,917,025,092.54
  5. Step 5: Solve for x
    x = 254,917,025,092.54/543,983.09
  6. Step 6: Final answer
    x = 468,612.04

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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.