Home / 1,100,046.80-1,651,625.40-680,142.80

Finding the Fourth Proportional to 1,100,046.80, 1,651,625.40 and 680,142.80

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Solution

The fourth proportional to 1,100,046.80, 1,651,625.40 and 680,142.80 is: 1,021,175.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,046.80 : 1,651,625.40 = 680,142.80 : x
  2. Step 2: Convert to fraction form
    1,100,046.80/1,651,625.40 = 680,142.80/x
  3. Step 3: Cross multiply
    1,100,046.80x = 1,651,625.40 × 680,142.80
  4. Step 4: Simplify right side
    1,100,046.80x = 1,123,341,124,107.12
  5. Step 5: Solve for x
    x = 1,123,341,124,107.12/1,100,046.80
  6. Step 6: Final answer
    x = 1,021,175.76

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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.