Home / 419,956.20-629,934.30-210,004.20

Finding the Fourth Proportional to 419,956.20, 629,934.30 and 210,004.20

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Solution

The fourth proportional to 419,956.20, 629,934.30 and 210,004.20 is: 315,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,956.20 : 629,934.30 = 210,004.20 : x
  2. Step 2: Convert to fraction form
    419,956.20/629,934.30 = 210,004.20/x
  3. Step 3: Cross multiply
    419,956.20x = 629,934.30 × 210,004.20
  4. Step 4: Simplify right side
    419,956.20x = 132,288,848,724.06
  5. Step 5: Solve for x
    x = 132,288,848,724.06/419,956.20
  6. Step 6: Final answer
    x = 315,006.30

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Similar ratio
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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.