Home / 1,420,131.03-1,959,796.43-775,570.20

Finding the Fourth Proportional to 1,420,131.03, 1,959,796.43 and 775,570.20

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Solution

The fourth proportional to 1,420,131.03, 1,959,796.43 and 775,570.20 is: 1,070,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,131.03 : 1,959,796.43 = 775,570.20 : x
  2. Step 2: Convert to fraction form
    1,420,131.03/1,959,796.43 = 775,570.20/x
  3. Step 3: Cross multiply
    1,420,131.03x = 1,959,796.43 × 775,570.20
  4. Step 4: Simplify right side
    1,420,131.03x = 1,519,959,709,174.39
  5. Step 5: Solve for x
    x = 1,519,959,709,174.39/1,420,131.03
  6. Step 6: Final answer
    x = 1,070,295.40

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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.