Home / 777,989.95-1,166,704.38-328,745.64

Finding the Fourth Proportional to 777,989.95, 1,166,704.38 and 328,745.64

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Solution

The fourth proportional to 777,989.95, 1,166,704.38 and 328,745.64 is: 492,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,989.95 : 1,166,704.38 = 328,745.64 : x
  2. Step 2: Convert to fraction form
    777,989.95/1,166,704.38 = 328,745.64/x
  3. Step 3: Cross multiply
    777,989.95x = 1,166,704.38 × 328,745.64
  4. Step 4: Simplify right side
    777,989.95x = 383,548,976,450.18
  5. Step 5: Solve for x
    x = 383,548,976,450.18/777,989.95
  6. Step 6: Final answer
    x = 492,999.91

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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.