Home / 2,989,503-4,484,212.38-1,391,172.12

Finding the Fourth Proportional to 2,989,503, 4,484,212.38 and 1,391,172.12

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Solution

The fourth proportional to 2,989,503, 4,484,212.38 and 1,391,172.12 is: 2,086,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,503 : 4,484,212.38 = 1,391,172.12 : x
  2. Step 2: Convert to fraction form
    2,989,503/4,484,212.38 = 1,391,172.12/x
  3. Step 3: Cross multiply
    2,989,503x = 4,484,212.38 × 1,391,172.12
  4. Step 4: Simplify right side
    2,989,503x = 6,238,311,243,214.85
  5. Step 5: Solve for x
    x = 6,238,311,243,214.85/2,989,503
  6. Step 6: Final answer
    x = 2,086,738.58

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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.