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Finding the Fourth Proportional to 550,411.49, 824,542.81 and 379,229.33

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Solution

The fourth proportional to 550,411.49, 824,542.81 and 379,229.33 is: 568,103.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,411.49 : 824,542.81 = 379,229.33 : x
  2. Step 2: Convert to fraction form
    550,411.49/824,542.81 = 379,229.33/x
  3. Step 3: Cross multiply
    550,411.49x = 824,542.81 × 379,229.33
  4. Step 4: Simplify right side
    550,411.49x = 312,690,818,505.90
  5. Step 5: Solve for x
    x = 312,690,818,505.90/550,411.49
  6. Step 6: Final answer
    x = 568,103.72

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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.