Finding the Fourth Proportional to 664,029.19, 916,333.22 and 392,185.09
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Solution
The fourth proportional to 664,029.19, 916,333.22 and 392,185.09 is: 541,199.44
Step by Step Solution
- Step 1: Write the proportion equation
664,029.19 : 916,333.22 = 392,185.09 : x - Step 2: Convert to fraction form
664,029.19/916,333.22 = 392,185.09/x - Step 3: Cross multiply
664,029.19x = 916,333.22 × 392,185.09 - Step 4: Simplify right side
664,029.19x = 359,372,222,103.93 - Step 5: Solve for x
x = 359,372,222,103.93/664,029.19 - Step 6: Final answer
x = 541,199.44
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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.