Home / 959,074.72-1,438,881.80-419,378.48

Finding the Fourth Proportional to 959,074.72, 1,438,881.80 and 419,378.48

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Solution

The fourth proportional to 959,074.72, 1,438,881.80 and 419,378.48 is: 629,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,074.72 : 1,438,881.80 = 419,378.48 : x
  2. Step 2: Convert to fraction form
    959,074.72/1,438,881.80 = 419,378.48/x
  3. Step 3: Cross multiply
    959,074.72x = 1,438,881.80 × 419,378.48
  4. Step 4: Simplify right side
    959,074.72x = 603,436,062,183.66
  5. Step 5: Solve for x
    x = 603,436,062,183.66/959,074.72
  6. Step 6: Final answer
    x = 629,185.66

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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.