Home / 3,991,090-5,986,686.84-1,331,698

Finding the Fourth Proportional to 3,991,090, 5,986,686.84 and 1,331,698

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Solution

The fourth proportional to 3,991,090, 5,986,686.84 and 1,331,698 is: 1,997,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,090 : 5,986,686.84 = 1,331,698 : x
  2. Step 2: Convert to fraction form
    3,991,090/5,986,686.84 = 1,331,698/x
  3. Step 3: Cross multiply
    3,991,090x = 5,986,686.84 × 1,331,698
  4. Step 4: Simplify right side
    3,991,090x = 7,972,458,891,454.32
  5. Step 5: Solve for x
    x = 7,972,458,891,454.32/3,991,090
  6. Step 6: Final answer
    x = 1,997,564.30

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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.