Finding the Fourth Proportional to 783,198.15, 1,174,798.15 and 214,584.09
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Solution
The fourth proportional to 783,198.15, 1,174,798.15 and 214,584.09 is: 321,876.38
Step by Step Solution
- Step 1: Write the proportion equation
783,198.15 : 1,174,798.15 = 214,584.09 : x - Step 2: Convert to fraction form
783,198.15/1,174,798.15 = 214,584.09/x - Step 3: Cross multiply
783,198.15x = 1,174,798.15 × 214,584.09 - Step 4: Simplify right side
783,198.15x = 252,092,987,009.48 - Step 5: Solve for x
x = 252,092,987,009.48/783,198.15 - Step 6: Final answer
x = 321,876.38
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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.