Home / 817,144.20-1,225,716.62-256,222.44

Finding the Fourth Proportional to 817,144.20, 1,225,716.62 and 256,222.44

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Solution

The fourth proportional to 817,144.20, 1,225,716.62 and 256,222.44 is: 384,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,144.20 : 1,225,716.62 = 256,222.44 : x
  2. Step 2: Convert to fraction form
    817,144.20/1,225,716.62 = 256,222.44/x
  3. Step 3: Cross multiply
    817,144.20x = 1,225,716.62 × 256,222.44
  4. Step 4: Simplify right side
    817,144.20x = 314,056,103,124.95
  5. Step 5: Solve for x
    x = 314,056,103,124.95/817,144.20
  6. Step 6: Final answer
    x = 384,333.76

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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.