Home / 1,278,803.64-1,918,202.22-1,200,855.72

Finding the Fourth Proportional to 1,278,803.64, 1,918,202.22 and 1,200,855.72

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Solution

The fourth proportional to 1,278,803.64, 1,918,202.22 and 1,200,855.72 is: 1,801,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,803.64 : 1,918,202.22 = 1,200,855.72 : x
  2. Step 2: Convert to fraction form
    1,278,803.64/1,918,202.22 = 1,200,855.72/x
  3. Step 3: Cross multiply
    1,278,803.64x = 1,918,202.22 × 1,200,855.72
  4. Step 4: Simplify right side
    1,278,803.64x = 2,303,484,108,003.70
  5. Step 5: Solve for x
    x = 2,303,484,108,003.70/1,278,803.64
  6. Step 6: Final answer
    x = 1,801,280.54

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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.