Home / 494,023.11-681,742.94-279,158.55

Finding the Fourth Proportional to 494,023.11, 681,742.94 and 279,158.55

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Solution

The fourth proportional to 494,023.11, 681,742.94 and 279,158.55 is: 385,233.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,023.11 : 681,742.94 = 279,158.55 : x
  2. Step 2: Convert to fraction form
    494,023.11/681,742.94 = 279,158.55/x
  3. Step 3: Cross multiply
    494,023.11x = 681,742.94 × 279,158.55
  4. Step 4: Simplify right side
    494,023.11x = 190,314,369,207.34
  5. Step 5: Solve for x
    x = 190,314,369,207.34/494,023.11
  6. Step 6: Final answer
    x = 385,233.74

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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.