Home / 419,904.70-629,857.05-404,158.30

Finding the Fourth Proportional to 419,904.70, 629,857.05 and 404,158.30

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Solution

The fourth proportional to 419,904.70, 629,857.05 and 404,158.30 is: 606,237.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904.70 : 629,857.05 = 404,158.30 : x
  2. Step 2: Convert to fraction form
    419,904.70/629,857.05 = 404,158.30/x
  3. Step 3: Cross multiply
    419,904.70x = 629,857.05 × 404,158.30
  4. Step 4: Simplify right side
    419,904.70x = 254,561,954,571.02
  5. Step 5: Solve for x
    x = 254,561,954,571.02/419,904.70
  6. Step 6: Final answer
    x = 606,237.45

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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.