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Finding the Fourth Proportional to 498,612.30, 746,865.45 and 330,213.30

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Solution

The fourth proportional to 498,612.30, 746,865.45 and 330,213.30 is: 494,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,612.30 : 746,865.45 = 330,213.30 : x
  2. Step 2: Convert to fraction form
    498,612.30/746,865.45 = 330,213.30/x
  3. Step 3: Cross multiply
    498,612.30x = 746,865.45 × 330,213.30
  4. Step 4: Simplify right side
    498,612.30x = 246,624,904,900.49
  5. Step 5: Solve for x
    x = 246,624,904,900.49/498,612.30
  6. Step 6: Final answer
    x = 494,622.59

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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.