Finding the Fourth Proportional to 591,912.09, 816,837.57 and 319,980.15
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Solution
The fourth proportional to 591,912.09, 816,837.57 and 319,980.15 is: 441,572.00
Step by Step Solution
- Step 1: Write the proportion equation
591,912.09 : 816,837.57 = 319,980.15 : x - Step 2: Convert to fraction form
591,912.09/816,837.57 = 319,980.15/x - Step 3: Cross multiply
591,912.09x = 816,837.57 × 319,980.15 - Step 4: Simplify right side
591,912.09x = 261,371,808,174.24 - Step 5: Solve for x
x = 261,371,808,174.24/591,912.09 - Step 6: Final answer
x = 441,572.00
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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.