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Finding the Fourth Proportional to 478,309.92, 660,097.62 and 263,449.86

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Solution

The fourth proportional to 478,309.92, 660,097.62 and 263,449.86 is: 363,577.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,309.92 : 660,097.62 = 263,449.86 : x
  2. Step 2: Convert to fraction form
    478,309.92/660,097.62 = 263,449.86/x
  3. Step 3: Cross multiply
    478,309.92x = 660,097.62 × 263,449.86
  4. Step 4: Simplify right side
    478,309.92x = 173,902,625,575.33
  5. Step 5: Solve for x
    x = 173,902,625,575.33/478,309.92
  6. Step 6: Final answer
    x = 363,577.29

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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.