Finding the Fourth Proportional to 543,319.80, 814,979.70 and 403,351.80
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Solution
The fourth proportional to 543,319.80, 814,979.70 and 403,351.80 is: 605,027.70
Step by Step Solution
- Step 1: Write the proportion equation
543,319.80 : 814,979.70 = 403,351.80 : x - Step 2: Convert to fraction form
543,319.80/814,979.70 = 403,351.80/x - Step 3: Cross multiply
543,319.80x = 814,979.70 × 403,351.80 - Step 4: Simplify right side
543,319.80x = 328,723,528,958.46 - Step 5: Solve for x
x = 328,723,528,958.46/543,319.80 - Step 6: Final answer
x = 605,027.70
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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.