Home / 3,978,985.20-5,974,698.60-2,299,369.20

Finding the Fourth Proportional to 3,978,985.20, 5,974,698.60 and 2,299,369.20

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Solution

The fourth proportional to 3,978,985.20, 5,974,698.60 and 2,299,369.20 is: 3,452,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,985.20 : 5,974,698.60 = 2,299,369.20 : x
  2. Step 2: Convert to fraction form
    3,978,985.20/5,974,698.60 = 2,299,369.20/x
  3. Step 3: Cross multiply
    3,978,985.20x = 5,974,698.60 × 2,299,369.20
  4. Step 4: Simplify right side
    3,978,985.20x = 13,738,037,940,123.12
  5. Step 5: Solve for x
    x = 13,738,037,940,123.12/3,978,985.20
  6. Step 6: Final answer
    x = 3,452,648.67

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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.