Finding the Fourth Proportional to 815,479.35, 1,125,375.41 and 447,971.99
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Solution
The fourth proportional to 815,479.35, 1,125,375.41 and 447,971.99 is: 618,208.98
Step by Step Solution
- Step 1: Write the proportion equation
815,479.35 : 1,125,375.41 = 447,971.99 : x - Step 2: Convert to fraction form
815,479.35/1,125,375.41 = 447,971.99/x - Step 3: Cross multiply
815,479.35x = 1,125,375.41 × 447,971.99 - Step 4: Simplify right side
815,479.35x = 504,136,657,407.82 - Step 5: Solve for x
x = 504,136,657,407.82/815,479.35 - Step 6: Final answer
x = 618,208.98
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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.