Finding the Fourth Proportional to 815,866.24, 1,125,975.36 and 471,716.80
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Solution
The fourth proportional to 815,866.24, 1,125,975.36 and 471,716.80 is: 651,015.41
Step by Step Solution
- Step 1: Write the proportion equation
815,866.24 : 1,125,975.36 = 471,716.80 : x - Step 2: Convert to fraction form
815,866.24/1,125,975.36 = 471,716.80/x - Step 3: Cross multiply
815,866.24x = 1,125,975.36 × 471,716.80 - Step 4: Simplify right side
815,866.24x = 531,141,493,698.05 - Step 5: Solve for x
x = 531,141,493,698.05/815,866.24 - Step 6: Final answer
x = 651,015.41
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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.