Home / 419,971.08-629,956.38-104,427.96

Finding the Fourth Proportional to 419,971.08, 629,956.38 and 104,427.96

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Solution

The fourth proportional to 419,971.08, 629,956.38 and 104,427.96 is: 156,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,971.08 : 629,956.38 = 104,427.96 : x
  2. Step 2: Convert to fraction form
    419,971.08/629,956.38 = 104,427.96/x
  3. Step 3: Cross multiply
    419,971.08x = 629,956.38 × 104,427.96
  4. Step 4: Simplify right side
    419,971.08x = 65,785,059,652.38
  5. Step 5: Solve for x
    x = 65,785,059,652.38/419,971.08
  6. Step 6: Final answer
    x = 156,641.88

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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.