Finding the Fourth Proportional to 728,097.97, 1,004,779.88 and 405,828.54
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Solution
The fourth proportional to 728,097.97, 1,004,779.88 and 405,828.54 is: 560,045.99
Step by Step Solution
- Step 1: Write the proportion equation
728,097.97 : 1,004,779.88 = 405,828.54 : x - Step 2: Convert to fraction form
728,097.97/1,004,779.88 = 405,828.54/x - Step 3: Cross multiply
728,097.97x = 1,004,779.88 × 405,828.54 - Step 4: Simplify right side
728,097.97x = 407,768,351,721.78 - Step 5: Solve for x
x = 407,768,351,721.78/728,097.97 - Step 6: Final answer
x = 560,045.99
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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.