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Finding the Fourth Proportional to 484,257.60, 726,386.40 and 422,049.60

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Solution

The fourth proportional to 484,257.60, 726,386.40 and 422,049.60 is: 633,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,257.60 : 726,386.40 = 422,049.60 : x
  2. Step 2: Convert to fraction form
    484,257.60/726,386.40 = 422,049.60/x
  3. Step 3: Cross multiply
    484,257.60x = 726,386.40 × 422,049.60
  4. Step 4: Simplify right side
    484,257.60x = 306,571,089,565.44
  5. Step 5: Solve for x
    x = 306,571,089,565.44/484,257.60
  6. Step 6: Final answer
    x = 633,074.40

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Similar ratio
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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.