Home / 815,005.45-1,222,672.20-682,801.30

Finding the Fourth Proportional to 815,005.45, 1,222,672.20 and 682,801.30

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Solution

The fourth proportional to 815,005.45, 1,222,672.20 and 682,801.30 is: 1,024,339.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,005.45 : 1,222,672.20 = 682,801.30 : x
  2. Step 2: Convert to fraction form
    815,005.45/1,222,672.20 = 682,801.30/x
  3. Step 3: Cross multiply
    815,005.45x = 1,222,672.20 × 682,801.30
  4. Step 4: Simplify right side
    815,005.45x = 834,842,167,633.86
  5. Step 5: Solve for x
    x = 834,842,167,633.86/815,005.45
  6. Step 6: Final answer
    x = 1,024,339.37

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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.