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Finding the Fourth Proportional to 525,879.27, 789,173.82 and 205,991.44

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Solution

The fourth proportional to 525,879.27, 789,173.82 and 205,991.44 is: 309,126.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,879.27 : 789,173.82 = 205,991.44 : x
  2. Step 2: Convert to fraction form
    525,879.27/789,173.82 = 205,991.44/x
  3. Step 3: Cross multiply
    525,879.27x = 789,173.82 × 205,991.44
  4. Step 4: Simplify right side
    525,879.27x = 162,563,051,592.10
  5. Step 5: Solve for x
    x = 162,563,051,592.10/525,879.27
  6. Step 6: Final answer
    x = 309,126.18

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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.