Finding the Fourth Proportional to 1,381,511, 2,072,383.16 and 384,239
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Solution
The fourth proportional to 1,381,511, 2,072,383.16 and 384,239 is: 576,390.95
Step by Step Solution
- Step 1: Write the proportion equation
1,381,511 : 2,072,383.16 = 384,239 : x - Step 2: Convert to fraction form
1,381,511/2,072,383.16 = 384,239/x - Step 3: Cross multiply
1,381,511x = 2,072,383.16 × 384,239 - Step 4: Simplify right side
1,381,511x = 796,290,433,015.24 - Step 5: Solve for x
x = 796,290,433,015.24/1,381,511 - Step 6: Final answer
x = 576,390.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.