Finding the Fourth Proportional to 509,617.49, 703,214.97 and 305,676.69
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Solution
The fourth proportional to 509,617.49, 703,214.97 and 305,676.69 is: 421,799.55
Step by Step Solution
- Step 1: Write the proportion equation
509,617.49 : 703,214.97 = 305,676.69 : x - Step 2: Convert to fraction form
509,617.49/703,214.97 = 305,676.69/x - Step 3: Cross multiply
509,617.49x = 703,214.97 × 305,676.69 - Step 4: Simplify right side
509,617.49x = 214,956,424,388.05 - Step 5: Solve for x
x = 214,956,424,388.05/509,617.49 - Step 6: Final answer
x = 421,799.55
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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.