Home / 1,387,201.80-2,077,692.30-1,200,577.80

Finding the Fourth Proportional to 1,387,201.80, 2,077,692.30 and 1,200,577.80

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Solution

The fourth proportional to 1,387,201.80, 2,077,692.30 and 1,200,577.80 is: 1,798,174.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,201.80 : 2,077,692.30 = 1,200,577.80 : x
  2. Step 2: Convert to fraction form
    1,387,201.80/2,077,692.30 = 1,200,577.80/x
  3. Step 3: Cross multiply
    1,387,201.80x = 2,077,692.30 × 1,200,577.80
  4. Step 4: Simplify right side
    1,387,201.80x = 2,494,431,250,610.94
  5. Step 5: Solve for x
    x = 2,494,431,250,610.94/1,387,201.80
  6. Step 6: Final answer
    x = 1,798,174.75

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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.