Home / 494,144.69-681,693.30-290,191.95

Finding the Fourth Proportional to 494,144.69, 681,693.30 and 290,191.95

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Solution

The fourth proportional to 494,144.69, 681,693.30 and 290,191.95 is: 400,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,144.69 : 681,693.30 = 290,191.95 : x
  2. Step 2: Convert to fraction form
    494,144.69/681,693.30 = 290,191.95/x
  3. Step 3: Cross multiply
    494,144.69x = 681,693.30 × 290,191.95
  4. Step 4: Simplify right side
    494,144.69x = 197,821,908,028.94
  5. Step 5: Solve for x
    x = 197,821,908,028.94/494,144.69
  6. Step 6: Final answer
    x = 400,331.96

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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.