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Finding the Fourth Proportional to 999,375.75, 1,379,138.54 and 546,676.47

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Solution

The fourth proportional to 999,375.75, 1,379,138.54 and 546,676.47 is: 754,413.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,375.75 : 1,379,138.54 = 546,676.47 : x
  2. Step 2: Convert to fraction form
    999,375.75/1,379,138.54 = 546,676.47/x
  3. Step 3: Cross multiply
    999,375.75x = 1,379,138.54 × 546,676.47
  4. Step 4: Simplify right side
    999,375.75x = 753,942,585,954.77
  5. Step 5: Solve for x
    x = 753,942,585,954.77/999,375.75
  6. Step 6: Final answer
    x = 754,413.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.