Home / 3,991,787.80-5,986,515.30-1,432,706.20

Finding the Fourth Proportional to 3,991,787.80, 5,986,515.30 and 1,432,706.20

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Solution

The fourth proportional to 3,991,787.80, 5,986,515.30 and 1,432,706.20 is: 2,148,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,787.80 : 5,986,515.30 = 1,432,706.20 : x
  2. Step 2: Convert to fraction form
    3,991,787.80/5,986,515.30 = 1,432,706.20/x
  3. Step 3: Cross multiply
    3,991,787.80x = 5,986,515.30 × 1,432,706.20
  4. Step 4: Simplify right side
    3,991,787.80x = 8,576,917,586,704.86
  5. Step 5: Solve for x
    x = 8,576,917,586,704.86/3,991,787.80
  6. Step 6: Final answer
    x = 2,148,640.66

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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.