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Finding the Fourth Proportional to 404,612.40, 606,845.70 and 254,584.20

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Solution

The fourth proportional to 404,612.40, 606,845.70 and 254,584.20 is: 381,830.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,612.40 : 606,845.70 = 254,584.20 : x
  2. Step 2: Convert to fraction form
    404,612.40/606,845.70 = 254,584.20/x
  3. Step 3: Cross multiply
    404,612.40x = 606,845.70 × 254,584.20
  4. Step 4: Simplify right side
    404,612.40x = 154,493,327,057.94
  5. Step 5: Solve for x
    x = 154,493,327,057.94/404,612.40
  6. Step 6: Final answer
    x = 381,830.43

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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.