Home / 809,699.88-1,213,736.96-276,856.46

Finding the Fourth Proportional to 809,699.88, 1,213,736.96 and 276,856.46

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Solution

The fourth proportional to 809,699.88, 1,213,736.96 and 276,856.46 is: 415,006.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,699.88 : 1,213,736.96 = 276,856.46 : x
  2. Step 2: Convert to fraction form
    809,699.88/1,213,736.96 = 276,856.46/x
  3. Step 3: Cross multiply
    809,699.88x = 1,213,736.96 × 276,856.46
  4. Step 4: Simplify right side
    809,699.88x = 336,030,918,116.76
  5. Step 5: Solve for x
    x = 336,030,918,116.76/809,699.88
  6. Step 6: Final answer
    x = 415,006.75

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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.