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Finding the Fourth Proportional to 548,348.32, 820,248 and 514,756

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Solution

The fourth proportional to 548,348.32, 820,248 and 514,756 is: 769,998.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,348.32 : 820,248 = 514,756 : x
  2. Step 2: Convert to fraction form
    548,348.32/820,248 = 514,756/x
  3. Step 3: Cross multiply
    548,348.32x = 820,248 × 514,756
  4. Step 4: Simplify right side
    548,348.32x = 422,227,579,488
  5. Step 5: Solve for x
    x = 422,227,579,488/548,348.32
  6. Step 6: Final answer
    x = 769,998.86

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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.