Home / 1,643,574.28-2,268,357.60-945,840.64

Finding the Fourth Proportional to 1,643,574.28, 2,268,357.60 and 945,840.64

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Solution

The fourth proportional to 1,643,574.28, 2,268,357.60 and 945,840.64 is: 1,305,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,574.28 : 2,268,357.60 = 945,840.64 : x
  2. Step 2: Convert to fraction form
    1,643,574.28/2,268,357.60 = 945,840.64/x
  3. Step 3: Cross multiply
    1,643,574.28x = 2,268,357.60 × 945,840.64
  4. Step 4: Simplify right side
    1,643,574.28x = 2,145,504,804,132.86
  5. Step 5: Solve for x
    x = 2,145,504,804,132.86/1,643,574.28
  6. Step 6: Final answer
    x = 1,305,389.62

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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.