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Finding the Fourth Proportional to 486,144.63, 729,479.39 and 236,826.63

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Solution

The fourth proportional to 486,144.63, 729,479.39 and 236,826.63 is: 355,367.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,144.63 : 729,479.39 = 236,826.63 : x
  2. Step 2: Convert to fraction form
    486,144.63/729,479.39 = 236,826.63/x
  3. Step 3: Cross multiply
    486,144.63x = 729,479.39 × 236,826.63
  4. Step 4: Simplify right side
    486,144.63x = 172,760,144,404.02
  5. Step 5: Solve for x
    x = 172,760,144,404.02/486,144.63
  6. Step 6: Final answer
    x = 355,367.79

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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.