Finding the Fourth Proportional to 543,365.70, 815,048.55 and 318,833.70
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Solution
The fourth proportional to 543,365.70, 815,048.55 and 318,833.70 is: 478,250.55
Step by Step Solution
- Step 1: Write the proportion equation
543,365.70 : 815,048.55 = 318,833.70 : x - Step 2: Convert to fraction form
543,365.70/815,048.55 = 318,833.70/x - Step 3: Cross multiply
543,365.70x = 815,048.55 × 318,833.70 - Step 4: Simplify right side
543,365.70x = 259,864,944,876.14 - Step 5: Solve for x
x = 259,864,944,876.14/543,365.70 - Step 6: Final answer
x = 478,250.55
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Similar ratio
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1.5x scale
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.