Finding the Fourth Proportional to 559,198.18, 771,715.33 and 317,503.26
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Solution
The fourth proportional to 559,198.18, 771,715.33 and 317,503.26 is: 438,166.90
Step by Step Solution
- Step 1: Write the proportion equation
559,198.18 : 771,715.33 = 317,503.26 : x - Step 2: Convert to fraction form
559,198.18/771,715.33 = 317,503.26/x - Step 3: Cross multiply
559,198.18x = 771,715.33 × 317,503.26 - Step 4: Simplify right side
559,198.18x = 245,022,133,066.98 - Step 5: Solve for x
x = 245,022,133,066.98/559,198.18 - Step 6: Final answer
x = 438,166.90
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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.