Home / 4,149,103.12-6,222,307.79-1,378,626.90

Finding the Fourth Proportional to 4,149,103.12, 6,222,307.79 and 1,378,626.90

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Solution

The fourth proportional to 4,149,103.12, 6,222,307.79 and 1,378,626.90 is: 2,067,492.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,149,103.12 : 6,222,307.79 = 1,378,626.90 : x
  2. Step 2: Convert to fraction form
    4,149,103.12/6,222,307.79 = 1,378,626.90/x
  3. Step 3: Cross multiply
    4,149,103.12x = 6,222,307.79 × 1,378,626.90
  4. Step 4: Simplify right side
    4,149,103.12x = 8,578,240,879,486.47
  5. Step 5: Solve for x
    x = 8,578,240,879,486.47/4,149,103.12
  6. Step 6: Final answer
    x = 2,067,492.81

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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.