Home / 494,003.08-681,715.36-279,138.52

Finding the Fourth Proportional to 494,003.08, 681,715.36 and 279,138.52

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Solution

The fourth proportional to 494,003.08, 681,715.36 and 279,138.52 is: 385,206.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,003.08 : 681,715.36 = 279,138.52 : x
  2. Step 2: Convert to fraction form
    494,003.08/681,715.36 = 279,138.52/x
  3. Step 3: Cross multiply
    494,003.08x = 681,715.36 × 279,138.52
  4. Step 4: Simplify right side
    494,003.08x = 190,293,016,651.67
  5. Step 5: Solve for x
    x = 190,293,016,651.67/494,003.08
  6. Step 6: Final answer
    x = 385,206.13

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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.