Home / 641,438.12-962,338.83-321,203.41

Finding the Fourth Proportional to 641,438.12, 962,338.83 and 321,203.41

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Solution

The fourth proportional to 641,438.12, 962,338.83 and 321,203.41 is: 481,896.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,438.12 : 962,338.83 = 321,203.41 : x
  2. Step 2: Convert to fraction form
    641,438.12/962,338.83 = 321,203.41/x
  3. Step 3: Cross multiply
    641,438.12x = 962,338.83 × 321,203.41
  4. Step 4: Simplify right side
    641,438.12x = 309,106,510,161.05
  5. Step 5: Solve for x
    x = 309,106,510,161.05/641,438.12
  6. Step 6: Final answer
    x = 481,896.07

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1.5x scale

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.