Home / 1,213,991.55-1,820,987.33-654,119.55

Finding the Fourth Proportional to 1,213,991.55, 1,820,987.33 and 654,119.55

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Solution

The fourth proportional to 1,213,991.55, 1,820,987.33 and 654,119.55 is: 981,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,991.55 : 1,820,987.33 = 654,119.55 : x
  2. Step 2: Convert to fraction form
    1,213,991.55/1,820,987.33 = 654,119.55/x
  3. Step 3: Cross multiply
    1,213,991.55x = 1,820,987.33 × 654,119.55
  4. Step 4: Simplify right side
    1,213,991.55x = 1,191,143,409,584.70
  5. Step 5: Solve for x
    x = 1,191,143,409,584.70/1,213,991.55
  6. Step 6: Final answer
    x = 981,179.33

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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.