Home / 1,219,089.26-1,682,324.65-667,800.55

Finding the Fourth Proportional to 1,219,089.26, 1,682,324.65 and 667,800.55

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Solution

The fourth proportional to 1,219,089.26, 1,682,324.65 and 667,800.55 is: 921,554.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,089.26 : 1,682,324.65 = 667,800.55 : x
  2. Step 2: Convert to fraction form
    1,219,089.26/1,682,324.65 = 667,800.55/x
  3. Step 3: Cross multiply
    1,219,089.26x = 1,682,324.65 × 667,800.55
  4. Step 4: Simplify right side
    1,219,089.26x = 1,123,457,329,486.21
  5. Step 5: Solve for x
    x = 1,123,457,329,486.21/1,219,089.26
  6. Step 6: Final answer
    x = 921,554.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.