Home / 2,311,812.89-3,190,223.37-1,279,364.25

Finding the Fourth Proportional to 2,311,812.89, 3,190,223.37 and 1,279,364.25

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Solution

The fourth proportional to 2,311,812.89, 3,190,223.37 and 1,279,364.25 is: 1,765,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311,812.89 : 3,190,223.37 = 1,279,364.25 : x
  2. Step 2: Convert to fraction form
    2,311,812.89/3,190,223.37 = 1,279,364.25/x
  3. Step 3: Cross multiply
    2,311,812.89x = 3,190,223.37 × 1,279,364.25
  4. Step 4: Simplify right side
    2,311,812.89x = 4,081,457,718,935.97
  5. Step 5: Solve for x
    x = 4,081,457,718,935.97/2,311,812.89
  6. Step 6: Final answer
    x = 1,765,479.27

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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.