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Finding the Fourth Proportional to 323,793.60, 485,690.40 and 303,057.60

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Solution

The fourth proportional to 323,793.60, 485,690.40 and 303,057.60 is: 454,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,793.60 : 485,690.40 = 303,057.60 : x
  2. Step 2: Convert to fraction form
    323,793.60/485,690.40 = 303,057.60/x
  3. Step 3: Cross multiply
    323,793.60x = 485,690.40 × 303,057.60
  4. Step 4: Simplify right side
    323,793.60x = 147,192,166,967.04
  5. Step 5: Solve for x
    x = 147,192,166,967.04/323,793.60
  6. Step 6: Final answer
    x = 454,586.40

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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.