Home / 792,613.60-1,188,906.64-319,286.88

Finding the Fourth Proportional to 792,613.60, 1,188,906.64 and 319,286.88

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Solution

The fourth proportional to 792,613.60, 1,188,906.64 and 319,286.88 is: 478,924.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,613.60 : 1,188,906.64 = 319,286.88 : x
  2. Step 2: Convert to fraction form
    792,613.60/1,188,906.64 = 319,286.88/x
  3. Step 3: Cross multiply
    792,613.60x = 1,188,906.64 × 319,286.88
  4. Step 4: Simplify right side
    792,613.60x = 379,602,291,696.88
  5. Step 5: Solve for x
    x = 379,602,291,696.88/792,613.60
  6. Step 6: Final answer
    x = 478,924.78

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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.