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Finding the Fourth Proportional to 603,500.30, 905,359.80 and 303,225.20

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Solution

The fourth proportional to 603,500.30, 905,359.80 and 303,225.20 is: 454,892.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,500.30 : 905,359.80 = 303,225.20 : x
  2. Step 2: Convert to fraction form
    603,500.30/905,359.80 = 303,225.20/x
  3. Step 3: Cross multiply
    603,500.30x = 905,359.80 × 303,225.20
  4. Step 4: Simplify right side
    603,500.30x = 274,527,906,426.96
  5. Step 5: Solve for x
    x = 274,527,906,426.96/603,500.30
  6. Step 6: Final answer
    x = 454,892.74

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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.