Home / 2,268,078.21-3,129,947.78-1,249,482.96

Finding the Fourth Proportional to 2,268,078.21, 3,129,947.78 and 1,249,482.96

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Solution

The fourth proportional to 2,268,078.21, 3,129,947.78 and 1,249,482.96 is: 1,724,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268,078.21 : 3,129,947.78 = 1,249,482.96 : x
  2. Step 2: Convert to fraction form
    2,268,078.21/3,129,947.78 = 1,249,482.96/x
  3. Step 3: Cross multiply
    2,268,078.21x = 3,129,947.78 × 1,249,482.96
  4. Step 4: Simplify right side
    2,268,078.21x = 3,910,816,410,552.41
  5. Step 5: Solve for x
    x = 3,910,816,410,552.41/2,268,078.21
  6. Step 6: Final answer
    x = 1,724,286.40

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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.