Home / 319,431.38-479,458.70-263,837.84

Finding the Fourth Proportional to 319,431.38, 479,458.70 and 263,837.84

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Solution

The fourth proportional to 319,431.38, 479,458.70 and 263,837.84 is: 396,014.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,431.38 : 479,458.70 = 263,837.84 : x
  2. Step 2: Convert to fraction form
    319,431.38/479,458.70 = 263,837.84/x
  3. Step 3: Cross multiply
    319,431.38x = 479,458.70 × 263,837.84
  4. Step 4: Simplify right side
    319,431.38x = 126,499,346,458.02
  5. Step 5: Solve for x
    x = 126,499,346,458.02/319,431.38
  6. Step 6: Final answer
    x = 396,014.15

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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.