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Finding the Fourth Proportional to 603,936.30, 906,013.80 and 303,661.20

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Solution

The fourth proportional to 603,936.30, 906,013.80 and 303,661.20 is: 455,546.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,936.30 : 906,013.80 = 303,661.20 : x
  2. Step 2: Convert to fraction form
    603,936.30/906,013.80 = 303,661.20/x
  3. Step 3: Cross multiply
    603,936.30x = 906,013.80 × 303,661.20
  4. Step 4: Simplify right side
    603,936.30x = 275,121,237,724.56
  5. Step 5: Solve for x
    x = 275,121,237,724.56/603,936.30
  6. Step 6: Final answer
    x = 455,546.78

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1.5x scale

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.