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Finding the Fourth Proportional to 549,390.12, 758,168.38 and 331,599.09

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Solution

The fourth proportional to 549,390.12, 758,168.38 and 331,599.09 is: 457,612.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,390.12 : 758,168.38 = 331,599.09 : x
  2. Step 2: Convert to fraction form
    549,390.12/758,168.38 = 331,599.09/x
  3. Step 3: Cross multiply
    549,390.12x = 758,168.38 × 331,599.09
  4. Step 4: Simplify right side
    549,390.12x = 251,407,944,874.77
  5. Step 5: Solve for x
    x = 251,407,944,874.77/549,390.12
  6. Step 6: Final answer
    x = 457,612.79

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