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Finding the Fourth Proportional to 488,458.52, 674,303.64 and 327,418.78

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Solution

The fourth proportional to 488,458.52, 674,303.64 and 327,418.78 is: 451,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,458.52 : 674,303.64 = 327,418.78 : x
  2. Step 2: Convert to fraction form
    488,458.52/674,303.64 = 327,418.78/x
  3. Step 3: Cross multiply
    488,458.52x = 674,303.64 × 327,418.78
  4. Step 4: Simplify right side
    488,458.52x = 220,779,675,158.36
  5. Step 5: Solve for x
    x = 220,779,675,158.36/488,458.52
  6. Step 6: Final answer
    x = 451,992.68

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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.