Finding the Fourth Proportional to 489,090.20, 674,983.61 and 271,320.36
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Solution
The fourth proportional to 489,090.20, 674,983.61 and 271,320.36 is: 374,443.80
Step by Step Solution
- Step 1: Write the proportion equation
489,090.20 : 674,983.61 = 271,320.36 : x - Step 2: Convert to fraction form
489,090.20/674,983.61 = 271,320.36/x - Step 3: Cross multiply
489,090.20x = 674,983.61 × 271,320.36 - Step 4: Simplify right side
489,090.20x = 183,136,794,324.26 - Step 5: Solve for x
x = 183,136,794,324.26/489,090.20 - Step 6: Final answer
x = 374,443.80
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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.