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Finding the Fourth Proportional to 3,990,114.81, 5,986,013.33 and 1,294,230.29

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Solution

The fourth proportional to 3,990,114.81, 5,986,013.33 and 1,294,230.29 is: 1,941,618.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,114.81 : 5,986,013.33 = 1,294,230.29 : x
  2. Step 2: Convert to fraction form
    3,990,114.81/5,986,013.33 = 1,294,230.29/x
  3. Step 3: Cross multiply
    3,990,114.81x = 5,986,013.33 × 1,294,230.29
  4. Step 4: Simplify right side
    3,990,114.81x = 7,747,279,741,335.27
  5. Step 5: Solve for x
    x = 7,747,279,741,335.27/3,990,114.81
  6. Step 6: Final answer
    x = 1,941,618.25

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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.