Home / 881,977.80-1,322,961.76-321,012.32

Finding the Fourth Proportional to 881,977.80, 1,322,961.76 and 321,012.32

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Solution

The fourth proportional to 881,977.80, 1,322,961.76 and 321,012.32 is: 481,516.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,977.80 : 1,322,961.76 = 321,012.32 : x
  2. Step 2: Convert to fraction form
    881,977.80/1,322,961.76 = 321,012.32/x
  3. Step 3: Cross multiply
    881,977.80x = 1,322,961.76 × 321,012.32
  4. Step 4: Simplify right side
    881,977.80x = 424,687,023,848.88
  5. Step 5: Solve for x
    x = 424,687,023,848.88/881,977.80
  6. Step 6: Final answer
    x = 481,516.68

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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.