Home / 2,861,745.26-3,949,428.16-1,638,434.50

Finding the Fourth Proportional to 2,861,745.26, 3,949,428.16 and 1,638,434.50

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Solution

The fourth proportional to 2,861,745.26, 3,949,428.16 and 1,638,434.50 is: 2,261,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861,745.26 : 3,949,428.16 = 1,638,434.50 : x
  2. Step 2: Convert to fraction form
    2,861,745.26/3,949,428.16 = 1,638,434.50/x
  3. Step 3: Cross multiply
    2,861,745.26x = 3,949,428.16 × 1,638,434.50
  4. Step 4: Simplify right side
    2,861,745.26x = 6,470,879,344,789.99
  5. Step 5: Solve for x
    x = 6,470,879,344,789.99/2,861,745.26
  6. Step 6: Final answer
    x = 2,261,165.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.