Finding the Fourth Proportional to 490,494.44, 676,884.66 and 286,556.96
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Solution
The fourth proportional to 490,494.44, 676,884.66 and 286,556.96 is: 395,449.97
Step by Step Solution
- Step 1: Write the proportion equation
490,494.44 : 676,884.66 = 286,556.96 : x - Step 2: Convert to fraction form
490,494.44/676,884.66 = 286,556.96/x - Step 3: Cross multiply
490,494.44x = 676,884.66 × 286,556.96 - Step 4: Simplify right side
490,494.44x = 193,966,010,440.23 - Step 5: Solve for x
x = 193,966,010,440.23/490,494.44 - Step 6: Final answer
x = 395,449.97
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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.