Home / 478,112.72-659,819.79-271,395.65

Finding the Fourth Proportional to 478,112.72, 659,819.79 and 271,395.65

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Solution

The fourth proportional to 478,112.72, 659,819.79 and 271,395.65 is: 374,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,112.72 : 659,819.79 = 271,395.65 : x
  2. Step 2: Convert to fraction form
    478,112.72/659,819.79 = 271,395.65/x
  3. Step 3: Cross multiply
    478,112.72x = 659,819.79 × 271,395.65
  4. Step 4: Simplify right side
    478,112.72x = 179,072,222,439.46
  5. Step 5: Solve for x
    x = 179,072,222,439.46/478,112.72
  6. Step 6: Final answer
    x = 374,539.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.