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Finding the Fourth Proportional to 547,488.52, 820,716.10 and 263,339.91

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Solution

The fourth proportional to 547,488.52, 820,716.10 and 263,339.91 is: 394,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,488.52 : 820,716.10 = 263,339.91 : x
  2. Step 2: Convert to fraction form
    547,488.52/820,716.10 = 263,339.91/x
  3. Step 3: Cross multiply
    547,488.52x = 820,716.10 × 263,339.91
  4. Step 4: Simplify right side
    547,488.52x = 216,127,303,251.20
  5. Step 5: Solve for x
    x = 216,127,303,251.20/547,488.52
  6. Step 6: Final answer
    x = 394,761.34

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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.