Home / 3,620,618.25-5,431,626.74-1,376,581.77

Finding the Fourth Proportional to 3,620,618.25, 5,431,626.74 and 1,376,581.77

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Solution

The fourth proportional to 3,620,618.25, 5,431,626.74 and 1,376,581.77 is: 2,065,138.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620,618.25 : 5,431,626.74 = 1,376,581.77 : x
  2. Step 2: Convert to fraction form
    3,620,618.25/5,431,626.74 = 1,376,581.77/x
  3. Step 3: Cross multiply
    3,620,618.25x = 5,431,626.74 × 1,376,581.77
  4. Step 4: Simplify right side
    3,620,618.25x = 7,477,078,344,845.62
  5. Step 5: Solve for x
    x = 7,477,078,344,845.62/3,620,618.25
  6. Step 6: Final answer
    x = 2,065,138.56

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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.