Home / 479,396.41-719,415.38-198,913.66

Finding the Fourth Proportional to 479,396.41, 719,415.38 and 198,913.66

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Solution

The fourth proportional to 479,396.41, 719,415.38 and 198,913.66 is: 298,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,396.41 : 719,415.38 = 198,913.66 : x
  2. Step 2: Convert to fraction form
    479,396.41/719,415.38 = 198,913.66/x
  3. Step 3: Cross multiply
    479,396.41x = 719,415.38 × 198,913.66
  4. Step 4: Simplify right side
    479,396.41x = 143,101,546,296.09
  5. Step 5: Solve for x
    x = 143,101,546,296.09/479,396.41
  6. Step 6: Final answer
    x = 298,503.58

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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.