Finding the Fourth Proportional to 727,426.08, 1,003,879.26 and 405,136.26
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Solution
The fourth proportional to 727,426.08, 1,003,879.26 and 405,136.26 is: 559,105.45
Step by Step Solution
- Step 1: Write the proportion equation
727,426.08 : 1,003,879.26 = 405,136.26 : x - Step 2: Convert to fraction form
727,426.08/1,003,879.26 = 405,136.26/x - Step 3: Cross multiply
727,426.08x = 1,003,879.26 × 405,136.26 - Step 4: Simplify right side
727,426.08x = 406,707,888,887.97 - Step 5: Solve for x
x = 406,707,888,887.97/727,426.08 - Step 6: Final answer
x = 559,105.45
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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.