Home / 856,838.40-1,285,257.60-324,376.80

Finding the Fourth Proportional to 856,838.40, 1,285,257.60 and 324,376.80

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Solution

The fourth proportional to 856,838.40, 1,285,257.60 and 324,376.80 is: 486,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,838.40 : 1,285,257.60 = 324,376.80 : x
  2. Step 2: Convert to fraction form
    856,838.40/1,285,257.60 = 324,376.80/x
  3. Step 3: Cross multiply
    856,838.40x = 1,285,257.60 × 324,376.80
  4. Step 4: Simplify right side
    856,838.40x = 416,907,747,463.68
  5. Step 5: Solve for x
    x = 416,907,747,463.68/856,838.40
  6. Step 6: Final answer
    x = 486,565.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.