Home / 744,325.56-1,115,982.96-378,688.50

Finding the Fourth Proportional to 744,325.56, 1,115,982.96 and 378,688.50

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Solution

The fourth proportional to 744,325.56, 1,115,982.96 and 378,688.50 is: 567,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,325.56 : 1,115,982.96 = 378,688.50 : x
  2. Step 2: Convert to fraction form
    744,325.56/1,115,982.96 = 378,688.50/x
  3. Step 3: Cross multiply
    744,325.56x = 1,115,982.96 × 378,688.50
  4. Step 4: Simplify right side
    744,325.56x = 422,609,913,147.96
  5. Step 5: Solve for x
    x = 422,609,913,147.96/744,325.56
  6. Step 6: Final answer
    x = 567,775.63

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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.