Home / 814,775.26-1,222,209.58-215,720.86

Finding the Fourth Proportional to 814,775.26, 1,222,209.58 and 215,720.86

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Solution

The fourth proportional to 814,775.26, 1,222,209.58 and 215,720.86 is: 323,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,775.26 : 1,222,209.58 = 215,720.86 : x
  2. Step 2: Convert to fraction form
    814,775.26/1,222,209.58 = 215,720.86/x
  3. Step 3: Cross multiply
    814,775.26x = 1,222,209.58 × 215,720.86
  4. Step 4: Simplify right side
    814,775.26x = 263,656,101,697.84
  5. Step 5: Solve for x
    x = 263,656,101,697.84/814,775.26
  6. Step 6: Final answer
    x = 323,593.65

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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.