Home / 2,679,138.40-4,018,642.80-1,613,372.80

Finding the Fourth Proportional to 2,679,138.40, 4,018,642.80 and 1,613,372.80

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Solution

The fourth proportional to 2,679,138.40, 4,018,642.80 and 1,613,372.80 is: 2,420,020.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679,138.40 : 4,018,642.80 = 1,613,372.80 : x
  2. Step 2: Convert to fraction form
    2,679,138.40/4,018,642.80 = 1,613,372.80/x
  3. Step 3: Cross multiply
    2,679,138.40x = 4,018,642.80 × 1,613,372.80
  4. Step 4: Simplify right side
    2,679,138.40x = 6,483,568,986,435.84
  5. Step 5: Solve for x
    x = 6,483,568,986,435.84/2,679,138.40
  6. Step 6: Final answer
    x = 2,420,020.18

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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.