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Finding the Fourth Proportional to 383,640.68, 574,785.48 and 341,891.66

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Solution

The fourth proportional to 383,640.68, 574,785.48 and 341,891.66 is: 512,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,640.68 : 574,785.48 = 341,891.66 : x
  2. Step 2: Convert to fraction form
    383,640.68/574,785.48 = 341,891.66/x
  3. Step 3: Cross multiply
    383,640.68x = 574,785.48 × 341,891.66
  4. Step 4: Simplify right side
    383,640.68x = 196,514,361,901.10
  5. Step 5: Solve for x
    x = 196,514,361,901.10/383,640.68
  6. Step 6: Final answer
    x = 512,235.46

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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.