Finding the Fourth Proportional to 755,757.40, 1,042,992.84 and 416,225.92
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Solution
The fourth proportional to 755,757.40, 1,042,992.84 and 416,225.92 is: 574,418.00
Step by Step Solution
- Step 1: Write the proportion equation
755,757.40 : 1,042,992.84 = 416,225.92 : x - Step 2: Convert to fraction form
755,757.40/1,042,992.84 = 416,225.92/x - Step 3: Cross multiply
755,757.40x = 1,042,992.84 × 416,225.92 - Step 4: Simplify right side
755,757.40x = 434,120,654,382.41 - Step 5: Solve for x
x = 434,120,654,382.41/755,757.40 - Step 6: Final answer
x = 574,418.00
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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.