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Finding the Fourth Proportional to 526,302, 789,057.72 and 171,105.20

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Solution

The fourth proportional to 526,302, 789,057.72 and 171,105.20 is: 256,529.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,302 : 789,057.72 = 171,105.20 : x
  2. Step 2: Convert to fraction form
    526,302/789,057.72 = 171,105.20/x
  3. Step 3: Cross multiply
    526,302x = 789,057.72 × 171,105.20
  4. Step 4: Simplify right side
    526,302x = 135,011,878,992.14
  5. Step 5: Solve for x
    x = 135,011,878,992.14/526,302
  6. Step 6: Final answer
    x = 256,529.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.