Home / 1,114,791.80-1,672,187.70-1,040,142.20

Finding the Fourth Proportional to 1,114,791.80, 1,672,187.70 and 1,040,142.20

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Solution

The fourth proportional to 1,114,791.80, 1,672,187.70 and 1,040,142.20 is: 1,560,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,791.80 : 1,672,187.70 = 1,040,142.20 : x
  2. Step 2: Convert to fraction form
    1,114,791.80/1,672,187.70 = 1,040,142.20/x
  3. Step 3: Cross multiply
    1,114,791.80x = 1,672,187.70 × 1,040,142.20
  4. Step 4: Simplify right side
    1,114,791.80x = 1,739,312,993,090.94
  5. Step 5: Solve for x
    x = 1,739,312,993,090.94/1,114,791.80
  6. Step 6: Final answer
    x = 1,560,213.30

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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.