Home / 419,778.26-629,470.55-153,352.45

Finding the Fourth Proportional to 419,778.26, 629,470.55 and 153,352.45

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Solution

The fourth proportional to 419,778.26, 629,470.55 and 153,352.45 is: 229,956.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,778.26 : 629,470.55 = 153,352.45 : x
  2. Step 2: Convert to fraction form
    419,778.26/629,470.55 = 153,352.45/x
  3. Step 3: Cross multiply
    419,778.26x = 629,470.55 × 153,352.45
  4. Step 4: Simplify right side
    419,778.26x = 96,530,852,215.57
  5. Step 5: Solve for x
    x = 96,530,852,215.57/419,778.26
  6. Step 6: Final answer
    x = 229,956.77

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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.