Home / 419,905.54-629,857.97-104,362.45

Finding the Fourth Proportional to 419,905.54, 629,857.97 and 104,362.45

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Solution

The fourth proportional to 419,905.54, 629,857.97 and 104,362.45 is: 156,543.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905.54 : 629,857.97 = 104,362.45 : x
  2. Step 2: Convert to fraction form
    419,905.54/629,857.97 = 104,362.45/x
  3. Step 3: Cross multiply
    419,905.54x = 629,857.97 × 104,362.45
  4. Step 4: Simplify right side
    419,905.54x = 65,733,521,554.64
  5. Step 5: Solve for x
    x = 65,733,521,554.64/419,905.54
  6. Step 6: Final answer
    x = 156,543.59

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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.