Home / 1,333,918.80-2,002,190.40-660,760.20

Finding the Fourth Proportional to 1,333,918.80, 2,002,190.40 and 660,760.20

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Solution

The fourth proportional to 1,333,918.80, 2,002,190.40 and 660,760.20 is: 991,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,918.80 : 2,002,190.40 = 660,760.20 : x
  2. Step 2: Convert to fraction form
    1,333,918.80/2,002,190.40 = 660,760.20/x
  3. Step 3: Cross multiply
    1,333,918.80x = 2,002,190.40 × 660,760.20
  4. Step 4: Simplify right side
    1,333,918.80x = 1,322,967,729,142.08
  5. Step 5: Solve for x
    x = 1,322,967,729,142.08/1,333,918.80
  6. Step 6: Final answer
    x = 991,790.30

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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.