Home / 1,313,183.91-1,812,878.77-932,121.03

Finding the Fourth Proportional to 1,313,183.91, 1,812,878.77 and 932,121.03

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Solution

The fourth proportional to 1,313,183.91, 1,812,878.77 and 932,121.03 is: 1,286,813.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,183.91 : 1,812,878.77 = 932,121.03 : x
  2. Step 2: Convert to fraction form
    1,313,183.91/1,812,878.77 = 932,121.03/x
  3. Step 3: Cross multiply
    1,313,183.91x = 1,812,878.77 × 932,121.03
  4. Step 4: Simplify right side
    1,313,183.91x = 1,689,822,432,573.25
  5. Step 5: Solve for x
    x = 1,689,822,432,573.25/1,313,183.91
  6. Step 6: Final answer
    x = 1,286,813.23

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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.