Finding the Fourth Proportional to 743,981.82, 1,115,981.84 and 211,501.99
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Solution
The fourth proportional to 743,981.82, 1,115,981.84 and 211,501.99 is: 317,255.58
Step by Step Solution
- Step 1: Write the proportion equation
743,981.82 : 1,115,981.84 = 211,501.99 : x - Step 2: Convert to fraction form
743,981.82/1,115,981.84 = 211,501.99/x - Step 3: Cross multiply
743,981.82x = 1,115,981.84 × 211,501.99 - Step 4: Simplify right side
743,981.82x = 236,032,380,697.90 - Step 5: Solve for x
x = 236,032,380,697.90/743,981.82 - Step 6: Final answer
x = 317,255.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.