Finding the Fourth Proportional to 528,609.44, 729,481.36 and 286,891.92
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Solution
The fourth proportional to 528,609.44, 729,481.36 and 286,891.92 is: 395,911.03
Step by Step Solution
- Step 1: Write the proportion equation
528,609.44 : 729,481.36 = 286,891.92 : x - Step 2: Convert to fraction form
528,609.44/729,481.36 = 286,891.92/x - Step 3: Cross multiply
528,609.44x = 729,481.36 × 286,891.92 - Step 4: Simplify right side
528,609.44x = 209,282,307,974.61 - Step 5: Solve for x
x = 209,282,307,974.61/528,609.44 - Step 6: Final answer
x = 395,911.03
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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.