Finding the Fourth Proportional to 1,207,478.67, 1,811,199.49 and 308,912.80
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Solution
The fourth proportional to 1,207,478.67, 1,811,199.49 and 308,912.80 is: 463,364.46
Step by Step Solution
- Step 1: Write the proportion equation
1,207,478.67 : 1,811,199.49 = 308,912.80 : x - Step 2: Convert to fraction form
1,207,478.67/1,811,199.49 = 308,912.80/x - Step 3: Cross multiply
1,207,478.67x = 1,811,199.49 × 308,912.80 - Step 4: Simplify right side
1,207,478.67x = 559,502,705,814.47 - Step 5: Solve for x
x = 559,502,705,814.47/1,207,478.67 - Step 6: Final answer
x = 463,364.46
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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.