Home / 419,747.20-629,697.60-170,454.40

Finding the Fourth Proportional to 419,747.20, 629,697.60 and 170,454.40

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Solution

The fourth proportional to 419,747.20, 629,697.60 and 170,454.40 is: 255,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,747.20 : 629,697.60 = 170,454.40 : x
  2. Step 2: Convert to fraction form
    419,747.20/629,697.60 = 170,454.40/x
  3. Step 3: Cross multiply
    419,747.20x = 629,697.60 × 170,454.40
  4. Step 4: Simplify right side
    419,747.20x = 107,334,726,589.44
  5. Step 5: Solve for x
    x = 107,334,726,589.44/419,747.20
  6. Step 6: Final answer
    x = 255,712.79

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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.