Finding the Fourth Proportional to 682,389.09, 941,392.44 and 395,743.05
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Solution
The fourth proportional to 682,389.09, 941,392.44 and 395,743.05 is: 545,948.82
Step by Step Solution
- Step 1: Write the proportion equation
682,389.09 : 941,392.44 = 395,743.05 : x - Step 2: Convert to fraction form
682,389.09/941,392.44 = 395,743.05/x - Step 3: Cross multiply
682,389.09x = 941,392.44 × 395,743.05 - Step 4: Simplify right side
682,389.09x = 372,549,515,452.54 - Step 5: Solve for x
x = 372,549,515,452.54/682,389.09 - Step 6: Final answer
x = 545,948.82
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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.