Home / 479,761.39-719,644.56-199,278.91

Finding the Fourth Proportional to 479,761.39, 719,644.56 and 199,278.91

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Solution

The fourth proportional to 479,761.39, 719,644.56 and 199,278.91 is: 298,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,761.39 : 719,644.56 = 199,278.91 : x
  2. Step 2: Convert to fraction form
    479,761.39/719,644.56 = 199,278.91/x
  3. Step 3: Cross multiply
    479,761.39x = 719,644.56 × 199,278.91
  4. Step 4: Simplify right side
    479,761.39x = 143,409,983,504.23
  5. Step 5: Solve for x
    x = 143,409,983,504.23/479,761.39
  6. Step 6: Final answer
    x = 298,919.39

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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.