Home / 722,145.72-1,082,450.20-272,675.24

Finding the Fourth Proportional to 722,145.72, 1,082,450.20 and 272,675.24

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Solution

The fourth proportional to 722,145.72, 1,082,450.20 and 272,675.24 is: 408,722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,145.72 : 1,082,450.20 = 272,675.24 : x
  2. Step 2: Convert to fraction form
    722,145.72/1,082,450.20 = 272,675.24/x
  3. Step 3: Cross multiply
    722,145.72x = 1,082,450.20 × 272,675.24
  4. Step 4: Simplify right side
    722,145.72x = 295,157,368,073.05
  5. Step 5: Solve for x
    x = 295,157,368,073.05/722,145.72
  6. Step 6: Final answer
    x = 408,722.73

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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.