Home / 421,971.60-632,519.98-263,836.92

Finding the Fourth Proportional to 421,971.60, 632,519.98 and 263,836.92

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Solution

The fourth proportional to 421,971.60, 632,519.98 and 263,836.92 is: 395,481.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,971.60 : 632,519.98 = 263,836.92 : x
  2. Step 2: Convert to fraction form
    421,971.60/632,519.98 = 263,836.92/x
  3. Step 3: Cross multiply
    421,971.60x = 632,519.98 × 263,836.92
  4. Step 4: Simplify right side
    421,971.60x = 166,882,123,361.66
  5. Step 5: Solve for x
    x = 166,882,123,361.66/421,971.60
  6. Step 6: Final answer
    x = 395,481.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.