Finding the Fourth Proportional to 858,045.93, 1,287,407.49 and 325,708.26
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Solution
The fourth proportional to 858,045.93, 1,287,407.49 and 325,708.26 is: 488,690.92
Step by Step Solution
- Step 1: Write the proportion equation
858,045.93 : 1,287,407.49 = 325,708.26 : x - Step 2: Convert to fraction form
858,045.93/1,287,407.49 = 325,708.26/x - Step 3: Cross multiply
858,045.93x = 1,287,407.49 × 325,708.26 - Step 4: Simplify right side
858,045.93x = 419,319,253,478.87 - Step 5: Solve for x
x = 419,319,253,478.87/858,045.93 - Step 6: Final answer
x = 488,690.92
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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.