Home / 679,544.64-1,019,355.84-206,245.44

Finding the Fourth Proportional to 679,544.64, 1,019,355.84 and 206,245.44

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Solution

The fourth proportional to 679,544.64, 1,019,355.84 and 206,245.44 is: 309,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,544.64 : 1,019,355.84 = 206,245.44 : x
  2. Step 2: Convert to fraction form
    679,544.64/1,019,355.84 = 206,245.44/x
  3. Step 3: Cross multiply
    679,544.64x = 1,019,355.84 × 206,245.44
  4. Step 4: Simplify right side
    679,544.64x = 210,237,493,737.37
  5. Step 5: Solve for x
    x = 210,237,493,737.37/679,544.64
  6. Step 6: Final answer
    x = 309,379.96

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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.