Home / 744,313.56-1,115,964.96-378,676.50

Finding the Fourth Proportional to 744,313.56, 1,115,964.96 and 378,676.50

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Solution

The fourth proportional to 744,313.56, 1,115,964.96 and 378,676.50 is: 567,757.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,313.56 : 1,115,964.96 = 378,676.50 : x
  2. Step 2: Convert to fraction form
    744,313.56/1,115,964.96 = 378,676.50/x
  3. Step 3: Cross multiply
    744,313.56x = 1,115,964.96 × 378,676.50
  4. Step 4: Simplify right side
    744,313.56x = 422,589,705,175.44
  5. Step 5: Solve for x
    x = 422,589,705,175.44/744,313.56
  6. Step 6: Final answer
    x = 567,757.63

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1.5x scale

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.