Home / 1,297,400.12-1,790,285.28-889,850.24

Finding the Fourth Proportional to 1,297,400.12, 1,790,285.28 and 889,850.24

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Solution

The fourth proportional to 1,297,400.12, 1,790,285.28 and 889,850.24 is: 1,227,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,400.12 : 1,790,285.28 = 889,850.24 : x
  2. Step 2: Convert to fraction form
    1,297,400.12/1,790,285.28 = 889,850.24/x
  3. Step 3: Cross multiply
    1,297,400.12x = 1,790,285.28 × 889,850.24
  4. Step 4: Simplify right side
    1,297,400.12x = 1,593,085,786,076.47
  5. Step 5: Solve for x
    x = 1,593,085,786,076.47/1,297,400.12
  6. Step 6: Final answer
    x = 1,227,906.30

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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.