Finding the Fourth Proportional to 543,805.70, 815,708.55 and 543,805.70
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Solution
The fourth proportional to 543,805.70, 815,708.55 and 543,805.70 is: 815,708.55
Step by Step Solution
- Step 1: Write the proportion equation
543,805.70 : 815,708.55 = 543,805.70 : x - Step 2: Convert to fraction form
543,805.70/815,708.55 = 543,805.70/x - Step 3: Cross multiply
543,805.70x = 815,708.55 × 543,805.70 - Step 4: Simplify right side
543,805.70x = 443,586,959,028.74 - Step 5: Solve for x
x = 443,586,959,028.74/543,805.70 - Step 6: Final answer
x = 815,708.55
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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.