Home / 1,941,840.80-2,912,761.20-1,269,994.40

Finding the Fourth Proportional to 1,941,840.80, 2,912,761.20 and 1,269,994.40

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Solution

The fourth proportional to 1,941,840.80, 2,912,761.20 and 1,269,994.40 is: 1,904,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,840.80 : 2,912,761.20 = 1,269,994.40 : x
  2. Step 2: Convert to fraction form
    1,941,840.80/2,912,761.20 = 1,269,994.40/x
  3. Step 3: Cross multiply
    1,941,840.80x = 2,912,761.20 × 1,269,994.40
  4. Step 4: Simplify right side
    1,941,840.80x = 3,699,190,412,537.28
  5. Step 5: Solve for x
    x = 3,699,190,412,537.28/1,941,840.80
  6. Step 6: Final answer
    x = 1,904,991.60

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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.