Home / 1,326,738.96-1,990,097.49-380,110.59

Finding the Fourth Proportional to 1,326,738.96, 1,990,097.49 and 380,110.59

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Solution

The fourth proportional to 1,326,738.96, 1,990,097.49 and 380,110.59 is: 570,162.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,738.96 : 1,990,097.49 = 380,110.59 : x
  2. Step 2: Convert to fraction form
    1,326,738.96/1,990,097.49 = 380,110.59/x
  3. Step 3: Cross multiply
    1,326,738.96x = 1,990,097.49 × 380,110.59
  4. Step 4: Simplify right side
    1,326,738.96x = 756,457,131,081.42
  5. Step 5: Solve for x
    x = 756,457,131,081.42/1,326,738.96
  6. Step 6: Final answer
    x = 570,162.75

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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.