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Finding the Fourth Proportional to 893,299.08, 1,339,195 and 387,479.24

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Solution

The fourth proportional to 893,299.08, 1,339,195 and 387,479.24 is: 580,891.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,299.08 : 1,339,195 = 387,479.24 : x
  2. Step 2: Convert to fraction form
    893,299.08/1,339,195 = 387,479.24/x
  3. Step 3: Cross multiply
    893,299.08x = 1,339,195 × 387,479.24
  4. Step 4: Simplify right side
    893,299.08x = 518,910,260,811.80
  5. Step 5: Solve for x
    x = 518,910,260,811.80/893,299.08
  6. Step 6: Final answer
    x = 580,891.97

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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.