Home / 3,991,076-5,986,665.84-1,331,684

Finding the Fourth Proportional to 3,991,076, 5,986,665.84 and 1,331,684

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Solution

The fourth proportional to 3,991,076, 5,986,665.84 and 1,331,684 is: 1,997,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,076 : 5,986,665.84 = 1,331,684 : x
  2. Step 2: Convert to fraction form
    3,991,076/5,986,665.84 = 1,331,684/x
  3. Step 3: Cross multiply
    3,991,076x = 5,986,665.84 × 1,331,684
  4. Step 4: Simplify right side
    3,991,076x = 7,972,347,112,474.56
  5. Step 5: Solve for x
    x = 7,972,347,112,474.56/3,991,076
  6. Step 6: Final answer
    x = 1,997,543.30

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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.