Home / 1,279,709.80-1,766,103.96-736,021.60

Finding the Fourth Proportional to 1,279,709.80, 1,766,103.96 and 736,021.60

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Solution

The fourth proportional to 1,279,709.80, 1,766,103.96 and 736,021.60 is: 1,015,769.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,709.80 : 1,766,103.96 = 736,021.60 : x
  2. Step 2: Convert to fraction form
    1,279,709.80/1,766,103.96 = 736,021.60/x
  3. Step 3: Cross multiply
    1,279,709.80x = 1,766,103.96 × 736,021.60
  4. Step 4: Simplify right side
    1,279,709.80x = 1,299,890,662,405.54
  5. Step 5: Solve for x
    x = 1,299,890,662,405.54/1,279,709.80
  6. Step 6: Final answer
    x = 1,015,769.87

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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.