Home / 821,939.94-1,230,916.91-568,509.17

Finding the Fourth Proportional to 821,939.94, 1,230,916.91 and 568,509.17

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Solution

The fourth proportional to 821,939.94, 1,230,916.91 and 568,509.17 is: 851,385.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,939.94 : 1,230,916.91 = 568,509.17 : x
  2. Step 2: Convert to fraction form
    821,939.94/1,230,916.91 = 568,509.17/x
  3. Step 3: Cross multiply
    821,939.94x = 1,230,916.91 × 568,509.17
  4. Step 4: Simplify right side
    821,939.94x = 699,787,541,845.93
  5. Step 5: Solve for x
    x = 699,787,541,845.93/821,939.94
  6. Step 6: Final answer
    x = 851,385.25

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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.