Home / 1,191,372.36-1,787,189.22-516,990.12

Finding the Fourth Proportional to 1,191,372.36, 1,787,189.22 and 516,990.12

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Solution

The fourth proportional to 1,191,372.36, 1,787,189.22 and 516,990.12 is: 775,541.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,372.36 : 1,787,189.22 = 516,990.12 : x
  2. Step 2: Convert to fraction form
    1,191,372.36/1,787,189.22 = 516,990.12/x
  3. Step 3: Cross multiply
    1,191,372.36x = 1,787,189.22 × 516,990.12
  4. Step 4: Simplify right side
    1,191,372.36x = 923,959,169,310.51
  5. Step 5: Solve for x
    x = 923,959,169,310.51/1,191,372.36
  6. Step 6: Final answer
    x = 775,541.89

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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.