Home / 1,198,958.42-1,652,640.85-811,651.70

Finding the Fourth Proportional to 1,198,958.42, 1,652,640.85 and 811,651.70

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Solution

The fourth proportional to 1,198,958.42, 1,652,640.85 and 811,651.70 is: 1,118,778.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,958.42 : 1,652,640.85 = 811,651.70 : x
  2. Step 2: Convert to fraction form
    1,198,958.42/1,652,640.85 = 811,651.70/x
  3. Step 3: Cross multiply
    1,198,958.42x = 1,652,640.85 × 811,651.70
  4. Step 4: Simplify right side
    1,198,958.42x = 1,341,368,755,391.95
  5. Step 5: Solve for x
    x = 1,341,368,755,391.95/1,198,958.42
  6. Step 6: Final answer
    x = 1,118,778.38

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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.