Finding the Fourth Proportional to 489,090.22, 674,935.86 and 274,229.62
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Solution
The fourth proportional to 489,090.22, 674,935.86 and 274,229.62 is: 378,432.03
Step by Step Solution
- Step 1: Write the proportion equation
489,090.22 : 674,935.86 = 274,229.62 : x - Step 2: Convert to fraction form
489,090.22/674,935.86 = 274,229.62/x - Step 3: Cross multiply
489,090.22x = 674,935.86 × 274,229.62 - Step 4: Simplify right side
489,090.22x = 185,087,404,412.17 - Step 5: Solve for x
x = 185,087,404,412.17/489,090.22 - Step 6: Final answer
x = 378,432.03
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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.