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Finding the Fourth Proportional to 721,649.03, 995,891.91 and 467,442.68

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Solution

The fourth proportional to 721,649.03, 995,891.91 and 467,442.68 is: 645,081.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,649.03 : 995,891.91 = 467,442.68 : x
  2. Step 2: Convert to fraction form
    721,649.03/995,891.91 = 467,442.68/x
  3. Step 3: Cross multiply
    721,649.03x = 995,891.91 × 467,442.68
  4. Step 4: Simplify right side
    721,649.03x = 465,522,383,400.72
  5. Step 5: Solve for x
    x = 465,522,383,400.72/721,649.03
  6. Step 6: Final answer
    x = 645,081.42

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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.