Finding the Fourth Proportional to 1,207,743.18, 1,666,689.05 and 691,504.99
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Solution
The fourth proportional to 1,207,743.18, 1,666,689.05 and 691,504.99 is: 954,278.86
Step by Step Solution
- Step 1: Write the proportion equation
1,207,743.18 : 1,666,689.05 = 691,504.99 : x - Step 2: Convert to fraction form
1,207,743.18/1,666,689.05 = 691,504.99/x - Step 3: Cross multiply
1,207,743.18x = 1,666,689.05 × 691,504.99 - Step 4: Simplify right side
1,207,743.18x = 1,152,523,795,158.10 - Step 5: Solve for x
x = 1,152,523,795,158.10/1,207,743.18 - Step 6: Final answer
x = 954,278.86
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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.