Home / 1,189,652.37-1,783,866.20-479,489.73

Finding the Fourth Proportional to 1,189,652.37, 1,783,866.20 and 479,489.73

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Solution

The fourth proportional to 1,189,652.37, 1,783,866.20 and 479,489.73 is: 718,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,652.37 : 1,783,866.20 = 479,489.73 : x
  2. Step 2: Convert to fraction form
    1,189,652.37/1,783,866.20 = 479,489.73/x
  3. Step 3: Cross multiply
    1,189,652.37x = 1,783,866.20 × 479,489.73
  4. Step 4: Simplify right side
    1,189,652.37x = 855,345,520,196.68
  5. Step 5: Solve for x
    x = 855,345,520,196.68/1,189,652.37
  6. Step 6: Final answer
    x = 718,987.78

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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.