Home / 419,568.09-629,548.97-209,222.43

Finding the Fourth Proportional to 419,568.09, 629,548.97 and 209,222.43

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Solution

The fourth proportional to 419,568.09, 629,548.97 and 209,222.43 is: 313,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,568.09 : 629,548.97 = 209,222.43 : x
  2. Step 2: Convert to fraction form
    419,568.09/629,548.97 = 209,222.43/x
  3. Step 3: Cross multiply
    419,568.09x = 629,548.97 × 209,222.43
  4. Step 4: Simplify right side
    419,568.09x = 131,715,764,261.29
  5. Step 5: Solve for x
    x = 131,715,764,261.29/419,568.09
  6. Step 6: Final answer
    x = 313,931.80

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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.