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Finding the Fourth Proportional to 847,338, 1,271,005.83 and 216,251.79

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Solution

The fourth proportional to 847,338, 1,271,005.83 and 216,251.79 is: 324,377.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,338 : 1,271,005.83 = 216,251.79 : x
  2. Step 2: Convert to fraction form
    847,338/1,271,005.83 = 216,251.79/x
  3. Step 3: Cross multiply
    847,338x = 1,271,005.83 × 216,251.79
  4. Step 4: Simplify right side
    847,338x = 274,857,285,837.94
  5. Step 5: Solve for x
    x = 274,857,285,837.94/847,338
  6. Step 6: Final answer
    x = 324,377.39

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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.