Finding the Fourth Proportional to 790,168.20, 1,090,434.99 and 427,592.03
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Solution
The fourth proportional to 790,168.20, 1,090,434.99 and 427,592.03 is: 590,078.55
Step by Step Solution
- Step 1: Write the proportion equation
790,168.20 : 1,090,434.99 = 427,592.03 : x - Step 2: Convert to fraction form
790,168.20/1,090,434.99 = 427,592.03/x - Step 3: Cross multiply
790,168.20x = 1,090,434.99 × 427,592.03 - Step 4: Simplify right side
790,168.20x = 466,261,305,504.96 - Step 5: Solve for x
x = 466,261,305,504.96/790,168.20 - Step 6: Final answer
x = 590,078.55
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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.