Finding the Fourth Proportional to 386,129.44, 576,553.04 and 345,888.64
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Solution
The fourth proportional to 386,129.44, 576,553.04 and 345,888.64 is: 516,467.09
Step by Step Solution
- Step 1: Write the proportion equation
386,129.44 : 576,553.04 = 345,888.64 : x - Step 2: Convert to fraction form
386,129.44/576,553.04 = 345,888.64/x - Step 3: Cross multiply
386,129.44x = 576,553.04 × 345,888.64 - Step 4: Simplify right side
386,129.44x = 199,423,146,893.47 - Step 5: Solve for x
x = 199,423,146,893.47/386,129.44 - Step 6: Final answer
x = 516,467.09
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.