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Finding the Fourth Proportional to 381,894.80, 573,454.20 and 303,659.60

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Solution

The fourth proportional to 381,894.80, 573,454.20 and 303,659.60 is: 455,976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,894.80 : 573,454.20 = 303,659.60 : x
  2. Step 2: Convert to fraction form
    381,894.80/573,454.20 = 303,659.60/x
  3. Step 3: Cross multiply
    381,894.80x = 573,454.20 × 303,659.60
  4. Step 4: Simplify right side
    381,894.80x = 174,134,872,990.32
  5. Step 5: Solve for x
    x = 174,134,872,990.32/381,894.80
  6. Step 6: Final answer
    x = 455,976.03

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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.