Home / 494,069.58-681,821.38-290,122.92

Finding the Fourth Proportional to 494,069.58, 681,821.38 and 290,122.92

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Solution

The fourth proportional to 494,069.58, 681,821.38 and 290,122.92 is: 400,372.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,069.58 : 681,821.38 = 290,122.92 : x
  2. Step 2: Convert to fraction form
    494,069.58/681,821.38 = 290,122.92/x
  3. Step 3: Cross multiply
    494,069.58x = 681,821.38 × 290,122.92
  4. Step 4: Simplify right side
    494,069.58x = 197,812,009,684.03
  5. Step 5: Solve for x
    x = 197,812,009,684.03/494,069.58
  6. Step 6: Final answer
    x = 400,372.78

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1.5x scale

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.