Finding the Fourth Proportional to 543,656.88, 815,806.08 and 206,980.92
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Solution
The fourth proportional to 543,656.88, 815,806.08 and 206,980.92 is: 310,593.50
Step by Step Solution
- Step 1: Write the proportion equation
543,656.88 : 815,806.08 = 206,980.92 : x - Step 2: Convert to fraction form
543,656.88/815,806.08 = 206,980.92/x - Step 3: Cross multiply
543,656.88x = 815,806.08 × 206,980.92 - Step 4: Simplify right side
543,656.88x = 168,856,292,979.99 - Step 5: Solve for x
x = 168,856,292,979.99/543,656.88 - Step 6: Final answer
x = 310,593.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.