Home / 679,676.81-1,019,449.26-206,366.27

Finding the Fourth Proportional to 679,676.81, 1,019,449.26 and 206,366.27

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Solution

The fourth proportional to 679,676.81, 1,019,449.26 and 206,366.27 is: 309,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,676.81 : 1,019,449.26 = 206,366.27 : x
  2. Step 2: Convert to fraction form
    679,676.81/1,019,449.26 = 206,366.27/x
  3. Step 3: Cross multiply
    679,676.81x = 1,019,449.26 × 206,366.27
  4. Step 4: Simplify right side
    679,676.81x = 210,379,936,143.21
  5. Step 5: Solve for x
    x = 210,379,936,143.21/679,676.81
  6. Step 6: Final answer
    x = 309,529.37

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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.