Home / 513,481.60-768,148.80-444,131.20

Finding the Fourth Proportional to 513,481.60, 768,148.80 and 444,131.20

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Solution

The fourth proportional to 513,481.60, 768,148.80 and 444,131.20 is: 664,403.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,481.60 : 768,148.80 = 444,131.20 : x
  2. Step 2: Convert to fraction form
    513,481.60/768,148.80 = 444,131.20/x
  3. Step 3: Cross multiply
    513,481.60x = 768,148.80 × 444,131.20
  4. Step 4: Simplify right side
    513,481.60x = 341,158,848,322.56
  5. Step 5: Solve for x
    x = 341,158,848,322.56/513,481.60
  6. Step 6: Final answer
    x = 664,403.26

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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.