Home / 3,286,987.48-4,931,420.82-1,940,378.68

Finding the Fourth Proportional to 3,286,987.48, 4,931,420.82 and 1,940,378.68

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Solution

The fourth proportional to 3,286,987.48, 4,931,420.82 and 1,940,378.68 is: 2,911,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286,987.48 : 4,931,420.82 = 1,940,378.68 : x
  2. Step 2: Convert to fraction form
    3,286,987.48/4,931,420.82 = 1,940,378.68/x
  3. Step 3: Cross multiply
    3,286,987.48x = 4,931,420.82 × 1,940,378.68
  4. Step 4: Simplify right side
    3,286,987.48x = 9,568,823,821,236.12
  5. Step 5: Solve for x
    x = 9,568,823,821,236.12/3,286,987.48
  6. Step 6: Final answer
    x = 2,911,122.69

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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.