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Finding the Fourth Proportional to 526,129.38, 789,310.98 and 245,493.54

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Solution

The fourth proportional to 526,129.38, 789,310.98 and 245,493.54 is: 368,294.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,129.38 : 789,310.98 = 245,493.54 : x
  2. Step 2: Convert to fraction form
    526,129.38/789,310.98 = 245,493.54/x
  3. Step 3: Cross multiply
    526,129.38x = 789,310.98 × 245,493.54
  4. Step 4: Simplify right side
    526,129.38x = 193,770,746,641.07
  5. Step 5: Solve for x
    x = 193,770,746,641.07/526,129.38
  6. Step 6: Final answer
    x = 368,294.86

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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.