Home / 419,828.44-629,740.32-104,285.20

Finding the Fourth Proportional to 419,828.44, 629,740.32 and 104,285.20

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Solution

The fourth proportional to 419,828.44, 629,740.32 and 104,285.20 is: 156,427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,828.44 : 629,740.32 = 104,285.20 : x
  2. Step 2: Convert to fraction form
    419,828.44/629,740.32 = 104,285.20/x
  3. Step 3: Cross multiply
    419,828.44x = 629,740.32 × 104,285.20
  4. Step 4: Simplify right side
    419,828.44x = 65,672,595,219.26
  5. Step 5: Solve for x
    x = 65,672,595,219.26/419,828.44
  6. Step 6: Final answer
    x = 156,427.22

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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.