Finding the Fourth Proportional to 777,509.14, 1,166,388.70 and 272,058.82
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Solution
The fourth proportional to 777,509.14, 1,166,388.70 and 272,058.82 is: 408,131.97
Step by Step Solution
- Step 1: Write the proportion equation
777,509.14 : 1,166,388.70 = 272,058.82 : x - Step 2: Convert to fraction form
777,509.14/1,166,388.70 = 272,058.82/x - Step 3: Cross multiply
777,509.14x = 1,166,388.70 × 272,058.82 - Step 4: Simplify right side
777,509.14x = 317,326,333,383.33 - Step 5: Solve for x
x = 317,326,333,383.33/777,509.14 - Step 6: Final answer
x = 408,131.97
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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.