Finding the Fourth Proportional to 611,382.12, 843,733.67 and 339,450.03
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Solution
The fourth proportional to 611,382.12, 843,733.67 and 339,450.03 is: 468,455.66
Step by Step Solution
- Step 1: Write the proportion equation
611,382.12 : 843,733.67 = 339,450.03 : x - Step 2: Convert to fraction form
611,382.12/843,733.67 = 339,450.03/x - Step 3: Cross multiply
611,382.12x = 843,733.67 × 339,450.03 - Step 4: Simplify right side
611,382.12x = 286,405,416,223.47 - Step 5: Solve for x
x = 286,405,416,223.47/611,382.12 - Step 6: Final answer
x = 468,455.66
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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.