Home / 1,791,138.96-2,687,758.20-1,285,154.64

Finding the Fourth Proportional to 1,791,138.96, 2,687,758.20 and 1,285,154.64

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Solution

The fourth proportional to 1,791,138.96, 2,687,758.20 and 1,285,154.64 is: 1,928,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,138.96 : 2,687,758.20 = 1,285,154.64 : x
  2. Step 2: Convert to fraction form
    1,791,138.96/2,687,758.20 = 1,285,154.64/x
  3. Step 3: Cross multiply
    1,791,138.96x = 2,687,758.20 × 1,285,154.64
  4. Step 4: Simplify right side
    1,791,138.96x = 3,454,184,921,928.05
  5. Step 5: Solve for x
    x = 3,454,184,921,928.05/1,791,138.96
  6. Step 6: Final answer
    x = 1,928,485.17

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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.