Home / 1,970,974.81-2,719,919.82-1,111,811.86

Finding the Fourth Proportional to 1,970,974.81, 2,719,919.82 and 1,111,811.86

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Solution

The fourth proportional to 1,970,974.81, 2,719,919.82 and 1,111,811.86 is: 1,534,286.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,974.81 : 2,719,919.82 = 1,111,811.86 : x
  2. Step 2: Convert to fraction form
    1,970,974.81/2,719,919.82 = 1,111,811.86/x
  3. Step 3: Cross multiply
    1,970,974.81x = 2,719,919.82 × 1,111,811.86
  4. Step 4: Simplify right side
    1,970,974.81x = 3,024,039,114,125.07
  5. Step 5: Solve for x
    x = 3,024,039,114,125.07/1,970,974.81
  6. Step 6: Final answer
    x = 1,534,286.03

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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.