Finding the Fourth Proportional to 728,107.24, 1,004,792.66 and 405,837.80
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Solution
The fourth proportional to 728,107.24, 1,004,792.66 and 405,837.80 is: 560,058.77
Step by Step Solution
- Step 1: Write the proportion equation
728,107.24 : 1,004,792.66 = 405,837.80 : x - Step 2: Convert to fraction form
728,107.24/1,004,792.66 = 405,837.80/x - Step 3: Cross multiply
728,107.24x = 1,004,792.66 × 405,837.80 - Step 4: Simplify right side
728,107.24x = 407,782,842,590.55 - Step 5: Solve for x
x = 407,782,842,590.55/728,107.24 - Step 6: Final answer
x = 560,058.77
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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.