Finding the Fourth Proportional to 412,862.76, 618,419.28 and 311,910.84
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Solution
The fourth proportional to 412,862.76, 618,419.28 and 311,910.84 is: 467,205.32
Step by Step Solution
- Step 1: Write the proportion equation
412,862.76 : 618,419.28 = 311,910.84 : x - Step 2: Convert to fraction form
412,862.76/618,419.28 = 311,910.84/x - Step 3: Cross multiply
412,862.76x = 618,419.28 × 311,910.84 - Step 4: Simplify right side
412,862.76x = 192,891,677,097.00 - Step 5: Solve for x
x = 192,891,677,097.00/412,862.76 - Step 6: Final answer
x = 467,205.32
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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.