Finding the Fourth Proportional to 921,828.96, 1,382,743.44 and 290,791.80
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Solution
The fourth proportional to 921,828.96, 1,382,743.44 and 290,791.80 is: 436,187.70
Step by Step Solution
- Step 1: Write the proportion equation
921,828.96 : 1,382,743.44 = 290,791.80 : x - Step 2: Convert to fraction form
921,828.96/1,382,743.44 = 290,791.80/x - Step 3: Cross multiply
921,828.96x = 1,382,743.44 × 290,791.80 - Step 4: Simplify right side
921,828.96x = 402,090,453,855.79 - Step 5: Solve for x
x = 402,090,453,855.79/921,828.96 - Step 6: Final answer
x = 436,187.70
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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.