Home / 818,840.06-1,228,405.92-279,066.44

Finding the Fourth Proportional to 818,840.06, 1,228,405.92 and 279,066.44

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Solution

The fourth proportional to 818,840.06, 1,228,405.92 and 279,066.44 is: 418,649.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,840.06 : 1,228,405.92 = 279,066.44 : x
  2. Step 2: Convert to fraction form
    818,840.06/1,228,405.92 = 279,066.44/x
  3. Step 3: Cross multiply
    818,840.06x = 1,228,405.92 × 279,066.44
  4. Step 4: Simplify right side
    818,840.06x = 342,806,866,969.33
  5. Step 5: Solve for x
    x = 342,806,866,969.33/818,840.06
  6. Step 6: Final answer
    x = 418,649.36

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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.