Finding the Fourth Proportional to 815,649.75, 1,223,734.64 and 342,207.99
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Solution
The fourth proportional to 815,649.75, 1,223,734.64 and 342,207.99 is: 513,421.07
Step by Step Solution
- Step 1: Write the proportion equation
815,649.75 : 1,223,734.64 = 342,207.99 : x - Step 2: Convert to fraction form
815,649.75/1,223,734.64 = 342,207.99/x - Step 3: Cross multiply
815,649.75x = 1,223,734.64 × 342,207.99 - Step 4: Simplify right side
815,649.75x = 418,771,769,736.73 - Step 5: Solve for x
x = 418,771,769,736.73/815,649.75 - Step 6: Final answer
x = 513,421.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.