Finding the Fourth Proportional to 396,370.57, 546,236.26 and 389,083.08
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Solution
The fourth proportional to 396,370.57, 546,236.26 and 389,083.08 is: 536,193.41
Step by Step Solution
- Step 1: Write the proportion equation
396,370.57 : 546,236.26 = 389,083.08 : x - Step 2: Convert to fraction form
396,370.57/546,236.26 = 389,083.08/x - Step 3: Cross multiply
396,370.57x = 546,236.26 × 389,083.08 - Step 4: Simplify right side
396,370.57x = 212,531,286,448.48 - Step 5: Solve for x
x = 212,531,286,448.48/396,370.57 - Step 6: Final answer
x = 536,193.41
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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.