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Finding the Fourth Proportional to 392,003.40, 588,350.70 and 336,016.20

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Solution

The fourth proportional to 392,003.40, 588,350.70 and 336,016.20 is: 504,320.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,003.40 : 588,350.70 = 336,016.20 : x
  2. Step 2: Convert to fraction form
    392,003.40/588,350.70 = 336,016.20/x
  3. Step 3: Cross multiply
    392,003.40x = 588,350.70 × 336,016.20
  4. Step 4: Simplify right side
    392,003.40x = 197,695,366,481.34
  5. Step 5: Solve for x
    x = 197,695,366,481.34/392,003.40
  6. Step 6: Final answer
    x = 504,320.54

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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.