Finding the Fourth Proportional to 386,453.00, 579,399.23 and 259,779.05
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Solution
The fourth proportional to 386,453.00, 579,399.23 and 259,779.05 is: 389,480.17
Step by Step Solution
- Step 1: Write the proportion equation
386,453.00 : 579,399.23 = 259,779.05 : x - Step 2: Convert to fraction form
386,453.00/579,399.23 = 259,779.05/x - Step 3: Cross multiply
386,453.00x = 579,399.23 × 259,779.05 - Step 4: Simplify right side
386,453.00x = 150,515,777,344.24 - Step 5: Solve for x
x = 150,515,777,344.24/386,453.00 - Step 6: Final answer
x = 389,480.17
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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.