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Finding the Fourth Proportional to 494,276.76, 681,695.82 and 303,155.64

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Solution

The fourth proportional to 494,276.76, 681,695.82 and 303,155.64 is: 418,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,276.76 : 681,695.82 = 303,155.64 : x
  2. Step 2: Convert to fraction form
    494,276.76/681,695.82 = 303,155.64/x
  3. Step 3: Cross multiply
    494,276.76x = 681,695.82 × 303,155.64
  4. Step 4: Simplify right side
    494,276.76x = 206,659,932,597.43
  5. Step 5: Solve for x
    x = 206,659,932,597.43/494,276.76
  6. Step 6: Final answer
    x = 418,105.70

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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.