Home / 2,185,665.75-3,016,218.74-1,280,247.75

Finding the Fourth Proportional to 2,185,665.75, 3,016,218.74 and 1,280,247.75

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Solution

The fourth proportional to 2,185,665.75, 3,016,218.74 and 1,280,247.75 is: 1,766,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,665.75 : 3,016,218.74 = 1,280,247.75 : x
  2. Step 2: Convert to fraction form
    2,185,665.75/3,016,218.74 = 1,280,247.75/x
  3. Step 3: Cross multiply
    2,185,665.75x = 3,016,218.74 × 1,280,247.75
  4. Step 4: Simplify right side
    2,185,665.75x = 3,861,507,248,991.60
  5. Step 5: Solve for x
    x = 3,861,507,248,991.60/2,185,665.75
  6. Step 6: Final answer
    x = 1,766,741.90

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1.5x scale

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.