Home / 1,508,136.88-2,081,268.72-819,855.04

Finding the Fourth Proportional to 1,508,136.88, 2,081,268.72 and 819,855.04

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Solution

The fourth proportional to 1,508,136.88, 2,081,268.72 and 819,855.04 is: 1,131,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508,136.88 : 2,081,268.72 = 819,855.04 : x
  2. Step 2: Convert to fraction form
    1,508,136.88/2,081,268.72 = 819,855.04/x
  3. Step 3: Cross multiply
    1,508,136.88x = 2,081,268.72 × 819,855.04
  4. Step 4: Simplify right side
    1,508,136.88x = 1,706,338,649,686.35
  5. Step 5: Solve for x
    x = 1,706,338,649,686.35/1,508,136.88
  6. Step 6: Final answer
    x = 1,131,421.61

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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.