Finding the Fourth Proportional to 489,200.88, 674,968.91 and 282,418.68
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Solution
The fourth proportional to 489,200.88, 674,968.91 and 282,418.68 is: 389,663.70
Step by Step Solution
- Step 1: Write the proportion equation
489,200.88 : 674,968.91 = 282,418.68 : x - Step 2: Convert to fraction form
489,200.88/674,968.91 = 282,418.68/x - Step 3: Cross multiply
489,200.88x = 674,968.91 × 282,418.68 - Step 4: Simplify right side
489,200.88x = 190,623,827,191.15 - Step 5: Solve for x
x = 190,623,827,191.15/489,200.88 - Step 6: Final answer
x = 389,663.70
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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.