Finding the Fourth Proportional to 523,745.16, 722,747.98 and 320,136.99
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Solution
The fourth proportional to 523,745.16, 722,747.98 and 320,136.99 is: 441,776.61
Step by Step Solution
- Step 1: Write the proportion equation
523,745.16 : 722,747.98 = 320,136.99 : x - Step 2: Convert to fraction form
523,745.16/722,747.98 = 320,136.99/x - Step 3: Cross multiply
523,745.16x = 722,747.98 × 320,136.99 - Step 4: Simplify right side
523,745.16x = 231,378,362,845.78 - Step 5: Solve for x
x = 231,378,362,845.78/523,745.16 - Step 6: Final answer
x = 441,776.61
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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.