Home / 3,111,700.80-4,661,330.40-1,780,449.60

Finding the Fourth Proportional to 3,111,700.80, 4,661,330.40 and 1,780,449.60

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Solution

The fourth proportional to 3,111,700.80, 4,661,330.40 and 1,780,449.60 is: 2,667,114.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,700.80 : 4,661,330.40 = 1,780,449.60 : x
  2. Step 2: Convert to fraction form
    3,111,700.80/4,661,330.40 = 1,780,449.60/x
  3. Step 3: Cross multiply
    3,111,700.80x = 4,661,330.40 × 1,780,449.60
  4. Step 4: Simplify right side
    3,111,700.80x = 8,299,263,846,147.84
  5. Step 5: Solve for x
    x = 8,299,263,846,147.84/3,111,700.80
  6. Step 6: Final answer
    x = 2,667,114.99

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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.