Finding the Fourth Proportional to 543,630.40, 815,056.80 and 243,865.60
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Solution
The fourth proportional to 543,630.40, 815,056.80 and 243,865.60 is: 365,623.99
Step by Step Solution
- Step 1: Write the proportion equation
543,630.40 : 815,056.80 = 243,865.60 : x - Step 2: Convert to fraction form
543,630.40/815,056.80 = 243,865.60/x - Step 3: Cross multiply
543,630.40x = 815,056.80 × 243,865.60 - Step 4: Simplify right side
543,630.40x = 198,764,315,566.08 - Step 5: Solve for x
x = 198,764,315,566.08/543,630.40 - Step 6: Final answer
x = 365,623.99
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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.