Home / 854,783.69-1,184,995.78-809,279.51

Finding the Fourth Proportional to 854,783.69, 1,184,995.78 and 809,279.51

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Solution

The fourth proportional to 854,783.69, 1,184,995.78 and 809,279.51 is: 1,121,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,783.69 : 1,184,995.78 = 809,279.51 : x
  2. Step 2: Convert to fraction form
    854,783.69/1,184,995.78 = 809,279.51/x
  3. Step 3: Cross multiply
    854,783.69x = 1,184,995.78 × 809,279.51
  4. Step 4: Simplify right side
    854,783.69x = 958,992,796,242.29
  5. Step 5: Solve for x
    x = 958,992,796,242.29/854,783.69
  6. Step 6: Final answer
    x = 1,121,912.85

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.