Finding the Fourth Proportional to 728,499.95, 1,092,126.63 and 279,542.99
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Solution
The fourth proportional to 728,499.95, 1,092,126.63 and 279,542.99 is: 419,075.31
Step by Step Solution
- Step 1: Write the proportion equation
728,499.95 : 1,092,126.63 = 279,542.99 : x - Step 2: Convert to fraction form
728,499.95/1,092,126.63 = 279,542.99/x - Step 3: Cross multiply
728,499.95x = 1,092,126.63 × 279,542.99 - Step 4: Simplify right side
728,499.95x = 305,296,343,608.82 - Step 5: Solve for x
x = 305,296,343,608.82/728,499.95 - Step 6: Final answer
x = 419,075.31
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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.