Home / 862,209.33-1,189,849.19-499,843.24

Finding the Fourth Proportional to 862,209.33, 1,189,849.19 and 499,843.24

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Solution

The fourth proportional to 862,209.33, 1,189,849.19 and 499,843.24 is: 689,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,209.33 : 1,189,849.19 = 499,843.24 : x
  2. Step 2: Convert to fraction form
    862,209.33/1,189,849.19 = 499,843.24/x
  3. Step 3: Cross multiply
    862,209.33x = 1,189,849.19 × 499,843.24
  4. Step 4: Simplify right side
    862,209.33x = 594,738,074,240.98
  5. Step 5: Solve for x
    x = 594,738,074,240.98/862,209.33
  6. Step 6: Final answer
    x = 689,783.86

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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.