Finding the Fourth Proportional to 910,631.29, 1,256,835.68 and 543,131.99
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Solution
The fourth proportional to 910,631.29, 1,256,835.68 and 543,131.99 is: 749,620.26
Step by Step Solution
- Step 1: Write the proportion equation
910,631.29 : 1,256,835.68 = 543,131.99 : x - Step 2: Convert to fraction form
910,631.29/1,256,835.68 = 543,131.99/x - Step 3: Cross multiply
910,631.29x = 1,256,835.68 × 543,131.99 - Step 4: Simplify right side
910,631.29x = 682,627,663,981.40 - Step 5: Solve for x
x = 682,627,663,981.40/910,631.29 - Step 6: Final answer
x = 749,620.26
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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.