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Finding the Fourth Proportional to 392,336.20, 588,504.30 and 303,762.70

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Solution

The fourth proportional to 392,336.20, 588,504.30 and 303,762.70 is: 455,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,336.20 : 588,504.30 = 303,762.70 : x
  2. Step 2: Convert to fraction form
    392,336.20/588,504.30 = 303,762.70/x
  3. Step 3: Cross multiply
    392,336.20x = 588,504.30 × 303,762.70
  4. Step 4: Simplify right side
    392,336.20x = 178,765,655,129.61
  5. Step 5: Solve for x
    x = 178,765,655,129.61/392,336.20
  6. Step 6: Final answer
    x = 455,644.05

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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.