Home / 689,299.80-1,033,950.24-216,021.96

Finding the Fourth Proportional to 689,299.80, 1,033,950.24 and 216,021.96

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Solution

The fourth proportional to 689,299.80, 1,033,950.24 and 216,021.96 is: 324,033.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,299.80 : 1,033,950.24 = 216,021.96 : x
  2. Step 2: Convert to fraction form
    689,299.80/1,033,950.24 = 216,021.96/x
  3. Step 3: Cross multiply
    689,299.80x = 1,033,950.24 × 216,021.96
  4. Step 4: Simplify right side
    689,299.80x = 223,355,957,387.27
  5. Step 5: Solve for x
    x = 223,355,957,387.27/689,299.80
  6. Step 6: Final answer
    x = 324,033.11

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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.