Finding the Fourth Proportional to 1,690,403.22, 2,531,398.70 and 1,182,586.43
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Solution
The fourth proportional to 1,690,403.22, 2,531,398.70 and 1,182,586.43 is: 1,770,937.09
Step by Step Solution
- Step 1: Write the proportion equation
1,690,403.22 : 2,531,398.70 = 1,182,586.43 : x - Step 2: Convert to fraction form
1,690,403.22/2,531,398.70 = 1,182,586.43/x - Step 3: Cross multiply
1,690,403.22x = 2,531,398.70 × 1,182,586.43 - Step 4: Simplify right side
1,690,403.22x = 2,993,597,760,824.60 - Step 5: Solve for x
x = 2,993,597,760,824.60/1,690,403.22 - Step 6: Final answer
x = 1,770,937.09
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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.