Home / 667,811.20-1,001,716.80-455,234.80

Finding the Fourth Proportional to 667,811.20, 1,001,716.80 and 455,234.80

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Solution

The fourth proportional to 667,811.20, 1,001,716.80 and 455,234.80 is: 682,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,811.20 : 1,001,716.80 = 455,234.80 : x
  2. Step 2: Convert to fraction form
    667,811.20/1,001,716.80 = 455,234.80/x
  3. Step 3: Cross multiply
    667,811.20x = 1,001,716.80 × 455,234.80
  4. Step 4: Simplify right side
    667,811.20x = 456,016,347,104.64
  5. Step 5: Solve for x
    x = 456,016,347,104.64/667,811.20
  6. Step 6: Final answer
    x = 682,852.20

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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.