Finding the Fourth Proportional to 547,107.80, 755,006.72 and 305,388.26
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Solution
The fourth proportional to 547,107.80, 755,006.72 and 305,388.26 is: 421,434.65
Step by Step Solution
- Step 1: Write the proportion equation
547,107.80 : 755,006.72 = 305,388.26 : x - Step 2: Convert to fraction form
547,107.80/755,006.72 = 305,388.26/x - Step 3: Cross multiply
547,107.80x = 755,006.72 × 305,388.26 - Step 4: Simplify right side
547,107.80x = 230,570,183,207.13 - Step 5: Solve for x
x = 230,570,183,207.13/547,107.80 - Step 6: Final answer
x = 421,434.65
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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.