Finding the Fourth Proportional to 2,079,669.29, 2,869,451.69 and 1,207,986.03
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Solution
The fourth proportional to 2,079,669.29, 2,869,451.69 and 1,207,986.03 is: 1,666,734.98
Step by Step Solution
- Step 1: Write the proportion equation
2,079,669.29 : 2,869,451.69 = 1,207,986.03 : x - Step 2: Convert to fraction form
2,079,669.29/2,869,451.69 = 1,207,986.03/x - Step 3: Cross multiply
2,079,669.29x = 2,869,451.69 × 1,207,986.03 - Step 4: Simplify right side
2,079,669.29x = 3,466,257,549,239.96 - Step 5: Solve for x
x = 3,466,257,549,239.96/2,079,669.29 - Step 6: Final answer
x = 1,666,734.98
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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.