Finding the Fourth Proportional to 815,813.84, 1,125,843.17 and 448,287.99
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Solution
The fourth proportional to 815,813.84, 1,125,843.17 and 448,287.99 is: 618,648.45
Step by Step Solution
- Step 1: Write the proportion equation
815,813.84 : 1,125,843.17 = 448,287.99 : x - Step 2: Convert to fraction form
815,813.84/1,125,843.17 = 448,287.99/x - Step 3: Cross multiply
815,813.84x = 1,125,843.17 × 448,287.99 - Step 4: Simplify right side
815,813.84x = 504,701,965,271.18 - Step 5: Solve for x
x = 504,701,965,271.18/815,813.84 - Step 6: Final answer
x = 618,648.45
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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.