Finding the Fourth Proportional to 1,207,744.18, 1,666,690.43 and 691,505.99
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Solution
The fourth proportional to 1,207,744.18, 1,666,690.43 and 691,505.99 is: 954,280.25
Step by Step Solution
- Step 1: Write the proportion equation
1,207,744.18 : 1,666,690.43 = 691,505.99 : x - Step 2: Convert to fraction form
1,207,744.18/1,666,690.43 = 691,505.99/x - Step 3: Cross multiply
1,207,744.18x = 1,666,690.43 × 691,505.99 - Step 4: Simplify right side
1,207,744.18x = 1,152,526,415,820.68 - Step 5: Solve for x
x = 1,152,526,415,820.68/1,207,744.18 - Step 6: Final answer
x = 954,280.25
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.