Home / 1,971,944.78-2,958,958.60-1,399,268.55

Finding the Fourth Proportional to 1,971,944.78, 2,958,958.60 and 1,399,268.55

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Solution

The fourth proportional to 1,971,944.78, 2,958,958.60 and 1,399,268.55 is: 2,099,641.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,944.78 : 2,958,958.60 = 1,399,268.55 : x
  2. Step 2: Convert to fraction form
    1,971,944.78/2,958,958.60 = 1,399,268.55/x
  3. Step 3: Cross multiply
    1,971,944.78x = 2,958,958.60 × 1,399,268.55
  4. Step 4: Simplify right side
    1,971,944.78x = 4,140,377,717,329.95
  5. Step 5: Solve for x
    x = 4,140,377,717,329.95/1,971,944.78
  6. Step 6: Final answer
    x = 2,099,641.82

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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.