Home / 1,297,912.57-1,791,155.49-717,173.29

Finding the Fourth Proportional to 1,297,912.57, 1,791,155.49 and 717,173.29

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Solution

The fourth proportional to 1,297,912.57, 1,791,155.49 and 717,173.29 is: 989,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,912.57 : 1,791,155.49 = 717,173.29 : x
  2. Step 2: Convert to fraction form
    1,297,912.57/1,791,155.49 = 717,173.29/x
  3. Step 3: Cross multiply
    1,297,912.57x = 1,791,155.49 × 717,173.29
  4. Step 4: Simplify right side
    1,297,912.57x = 1,284,568,875,664.86
  5. Step 5: Solve for x
    x = 1,284,568,875,664.86/1,297,912.57
  6. Step 6: Final answer
    x = 989,719.11

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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.