Home / 3,178,676.40-4,768,014.60-1,383,586.80

Finding the Fourth Proportional to 3,178,676.40, 4,768,014.60 and 1,383,586.80

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Solution

The fourth proportional to 3,178,676.40, 4,768,014.60 and 1,383,586.80 is: 2,075,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,676.40 : 4,768,014.60 = 1,383,586.80 : x
  2. Step 2: Convert to fraction form
    3,178,676.40/4,768,014.60 = 1,383,586.80/x
  3. Step 3: Cross multiply
    3,178,676.40x = 4,768,014.60 × 1,383,586.80
  4. Step 4: Simplify right side
    3,178,676.40x = 6,596,962,062,767.28
  5. Step 5: Solve for x
    x = 6,596,962,062,767.28/3,178,676.40
  6. Step 6: Final answer
    x = 2,075,380.20

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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.