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Finding the Fourth Proportional to 655,800.60, 984,138.30 and 300,631.80

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Solution

The fourth proportional to 655,800.60, 984,138.30 and 300,631.80 is: 451,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,800.60 : 984,138.30 = 300,631.80 : x
  2. Step 2: Convert to fraction form
    655,800.60/984,138.30 = 300,631.80/x
  3. Step 3: Cross multiply
    655,800.60x = 984,138.30 × 300,631.80
  4. Step 4: Simplify right side
    655,800.60x = 295,863,268,577.94
  5. Step 5: Solve for x
    x = 295,863,268,577.94/655,800.60
  6. Step 6: Final answer
    x = 451,148.21

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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.