Finding the Fourth Proportional to 790,187.26, 1,090,450.10 and 427,603.18
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Solution
The fourth proportional to 790,187.26, 1,090,450.10 and 427,603.18 is: 590,087.89
Step by Step Solution
- Step 1: Write the proportion equation
790,187.26 : 1,090,450.10 = 427,603.18 : x - Step 2: Convert to fraction form
790,187.26/1,090,450.10 = 427,603.18/x - Step 3: Cross multiply
790,187.26x = 1,090,450.10 × 427,603.18 - Step 4: Simplify right side
790,187.26x = 466,279,930,391.32 - Step 5: Solve for x
x = 466,279,930,391.32/790,187.26 - Step 6: Final answer
x = 590,087.89
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1.5x scale
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.