Finding the Fourth Proportional to 588,921.12, 812,504.10 and 385,091.31
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Solution
The fourth proportional to 588,921.12, 812,504.10 and 385,091.31 is: 531,290.62
Step by Step Solution
- Step 1: Write the proportion equation
588,921.12 : 812,504.10 = 385,091.31 : x - Step 2: Convert to fraction form
588,921.12/812,504.10 = 385,091.31/x - Step 3: Cross multiply
588,921.12x = 812,504.10 × 385,091.31 - Step 4: Simplify right side
588,921.12x = 312,888,268,249.37 - Step 5: Solve for x
x = 312,888,268,249.37/588,921.12 - Step 6: Final answer
x = 531,290.62
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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.