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Finding the Fourth Proportional to 381,366, 524,418.84 and 330,977.52

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Solution

The fourth proportional to 381,366, 524,418.84 and 330,977.52 is: 455,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,366 : 524,418.84 = 330,977.52 : x
  2. Step 2: Convert to fraction form
    381,366/524,418.84 = 330,977.52/x
  3. Step 3: Cross multiply
    381,366x = 524,418.84 × 330,977.52
  4. Step 4: Simplify right side
    381,366x = 173,570,847,104.48
  5. Step 5: Solve for x
    x = 173,570,847,104.48/381,366
  6. Step 6: Final answer
    x = 455,129.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.