Finding the Fourth Proportional to 932,482.72, 1,286,137.36 and 642,186.49
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Solution
The fourth proportional to 932,482.72, 1,286,137.36 and 642,186.49 is: 885,742.99
Step by Step Solution
- Step 1: Write the proportion equation
932,482.72 : 1,286,137.36 = 642,186.49 : x - Step 2: Convert to fraction form
932,482.72/1,286,137.36 = 642,186.49/x - Step 3: Cross multiply
932,482.72x = 1,286,137.36 × 642,186.49 - Step 4: Simplify right side
932,482.72x = 825,940,036,876.27 - Step 5: Solve for x
x = 825,940,036,876.27/932,482.72 - Step 6: Final answer
x = 885,742.99
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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.