Home / 1,332,872.70-1,999,289.37-321,985.98

Finding the Fourth Proportional to 1,332,872.70, 1,999,289.37 and 321,985.98

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Solution

The fourth proportional to 1,332,872.70, 1,999,289.37 and 321,985.98 is: 482,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,872.70 : 1,999,289.37 = 321,985.98 : x
  2. Step 2: Convert to fraction form
    1,332,872.70/1,999,289.37 = 321,985.98/x
  3. Step 3: Cross multiply
    1,332,872.70x = 1,999,289.37 × 321,985.98
  4. Step 4: Simplify right side
    1,332,872.70x = 643,743,147,103.03
  5. Step 5: Solve for x
    x = 643,743,147,103.03/1,332,872.70
  6. Step 6: Final answer
    x = 482,974.22

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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.