Finding the Fourth Proportional to 438,941.80, 658,412.70 and 320,843.80
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Solution
The fourth proportional to 438,941.80, 658,412.70 and 320,843.80 is: 481,265.70
Step by Step Solution
- Step 1: Write the proportion equation
438,941.80 : 658,412.70 = 320,843.80 : x - Step 2: Convert to fraction form
438,941.80/658,412.70 = 320,843.80/x - Step 3: Cross multiply
438,941.80x = 658,412.70 × 320,843.80 - Step 4: Simplify right side
438,941.80x = 211,247,632,636.26 - Step 5: Solve for x
x = 211,247,632,636.26/438,941.80 - Step 6: Final answer
x = 481,265.70
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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.