Home / 1,311,405.96-1,809,691.56-730,615.44

Finding the Fourth Proportional to 1,311,405.96, 1,809,691.56 and 730,615.44

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Solution

The fourth proportional to 1,311,405.96, 1,809,691.56 and 730,615.44 is: 1,008,222.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,405.96 : 1,809,691.56 = 730,615.44 : x
  2. Step 2: Convert to fraction form
    1,311,405.96/1,809,691.56 = 730,615.44/x
  3. Step 3: Cross multiply
    1,311,405.96x = 1,809,691.56 × 730,615.44
  4. Step 4: Simplify right side
    1,311,405.96x = 1,322,188,595,373.69
  5. Step 5: Solve for x
    x = 1,322,188,595,373.69/1,311,405.96
  6. Step 6: Final answer
    x = 1,008,222.19

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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.