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Finding the Fourth Proportional to 479,714.59, 661,975.50 and 275,716.90

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Solution

The fourth proportional to 479,714.59, 661,975.50 and 275,716.90 is: 380,471.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,714.59 : 661,975.50 = 275,716.90 : x
  2. Step 2: Convert to fraction form
    479,714.59/661,975.50 = 275,716.90/x
  3. Step 3: Cross multiply
    479,714.59x = 661,975.50 × 275,716.90
  4. Step 4: Simplify right side
    479,714.59x = 182,517,832,735.95
  5. Step 5: Solve for x
    x = 182,517,832,735.95/479,714.59
  6. Step 6: Final answer
    x = 380,471.71

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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.