Finding the Fourth Proportional to 401,879.70, 554,613.63 and 220,589.70
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Solution
The fourth proportional to 401,879.70, 554,613.63 and 220,589.70 is: 304,424.57
Step by Step Solution
- Step 1: Write the proportion equation
401,879.70 : 554,613.63 = 220,589.70 : x - Step 2: Convert to fraction form
401,879.70/554,613.63 = 220,589.70/x - Step 3: Cross multiply
401,879.70x = 554,613.63 × 220,589.70 - Step 4: Simplify right side
401,879.70x = 122,342,057,270.97 - Step 5: Solve for x
x = 122,342,057,270.97/401,879.70 - Step 6: Final answer
x = 304,424.57
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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.