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Finding the Fourth Proportional to 655,908.60, 984,300.30 and 300,739.80

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Solution

The fourth proportional to 655,908.60, 984,300.30 and 300,739.80 is: 451,310.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,908.60 : 984,300.30 = 300,739.80 : x
  2. Step 2: Convert to fraction form
    655,908.60/984,300.30 = 300,739.80/x
  3. Step 3: Cross multiply
    655,908.60x = 984,300.30 × 300,739.80
  4. Step 4: Simplify right side
    655,908.60x = 296,018,275,361.94
  5. Step 5: Solve for x
    x = 296,018,275,361.94/655,908.60
  6. Step 6: Final answer
    x = 451,310.25

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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.