Finding the Fourth Proportional to 807,156, 1,207,744.68 and 505,231.20
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Solution
The fourth proportional to 807,156, 1,207,744.68 and 505,231.20 is: 755,975.67
Step by Step Solution
- Step 1: Write the proportion equation
807,156 : 1,207,744.68 = 505,231.20 : x - Step 2: Convert to fraction form
807,156/1,207,744.68 = 505,231.20/x - Step 3: Cross multiply
807,156x = 1,207,744.68 × 505,231.20 - Step 4: Simplify right side
807,156x = 610,190,293,970.02 - Step 5: Solve for x
x = 610,190,293,970.02/807,156 - Step 6: Final answer
x = 755,975.67
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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.