Home / 819,447.67-1,229,298.14-279,577.54

Finding the Fourth Proportional to 819,447.67, 1,229,298.14 and 279,577.54

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Solution

The fourth proportional to 819,447.67, 1,229,298.14 and 279,577.54 is: 419,409.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,447.67 : 1,229,298.14 = 279,577.54 : x
  2. Step 2: Convert to fraction form
    819,447.67/1,229,298.14 = 279,577.54/x
  3. Step 3: Cross multiply
    819,447.67x = 1,229,298.14 × 279,577.54
  4. Step 4: Simplify right side
    819,447.67x = 343,684,149,907.78
  5. Step 5: Solve for x
    x = 343,684,149,907.78/819,447.67
  6. Step 6: Final answer
    x = 419,409.52

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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.