Home / 859,944.30-1,289,916.45-220,246.80

Finding the Fourth Proportional to 859,944.30, 1,289,916.45 and 220,246.80

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Solution

The fourth proportional to 859,944.30, 1,289,916.45 and 220,246.80 is: 330,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,944.30 : 1,289,916.45 = 220,246.80 : x
  2. Step 2: Convert to fraction form
    859,944.30/1,289,916.45 = 220,246.80/x
  3. Step 3: Cross multiply
    859,944.30x = 1,289,916.45 × 220,246.80
  4. Step 4: Simplify right side
    859,944.30x = 284,099,970,379.86
  5. Step 5: Solve for x
    x = 284,099,970,379.86/859,944.30
  6. Step 6: Final answer
    x = 330,370.20

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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.