Home / 2,131,777.65-3,198,168.45-692,456.56

Finding the Fourth Proportional to 2,131,777.65, 3,198,168.45 and 692,456.56

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Solution

The fourth proportional to 2,131,777.65, 3,198,168.45 and 692,456.56 is: 1,038,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,777.65 : 3,198,168.45 = 692,456.56 : x
  2. Step 2: Convert to fraction form
    2,131,777.65/3,198,168.45 = 692,456.56/x
  3. Step 3: Cross multiply
    2,131,777.65x = 3,198,168.45 × 692,456.56
  4. Step 4: Simplify right side
    2,131,777.65x = 2,214,592,723,187.53
  5. Step 5: Solve for x
    x = 2,214,592,723,187.53/2,131,777.65
  6. Step 6: Final answer
    x = 1,038,847.89

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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.