Home / 1,219,089.45-1,682,324.91-667,800.74

Finding the Fourth Proportional to 1,219,089.45, 1,682,324.91 and 667,800.74

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Solution

The fourth proportional to 1,219,089.45, 1,682,324.91 and 667,800.74 is: 921,554.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,089.45 : 1,682,324.91 = 667,800.74 : x
  2. Step 2: Convert to fraction form
    1,219,089.45/1,682,324.91 = 667,800.74/x
  3. Step 3: Cross multiply
    1,219,089.45x = 1,682,324.91 × 667,800.74
  4. Step 4: Simplify right side
    1,219,089.45x = 1,123,457,817,715.53
  5. Step 5: Solve for x
    x = 1,123,457,817,715.53/1,219,089.45
  6. Step 6: Final answer
    x = 921,554.87

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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.