Finding the Fourth Proportional to 2,079,669.79, 2,869,452.38 and 1,207,986.53
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Solution
The fourth proportional to 2,079,669.79, 2,869,452.38 and 1,207,986.53 is: 1,666,735.67
Step by Step Solution
- Step 1: Write the proportion equation
2,079,669.79 : 2,869,452.38 = 1,207,986.53 : x - Step 2: Convert to fraction form
2,079,669.79/2,869,452.38 = 1,207,986.53/x - Step 3: Cross multiply
2,079,669.79x = 2,869,452.38 × 1,207,986.53 - Step 4: Simplify right side
2,079,669.79x = 3,466,259,817,476.51 - Step 5: Solve for x
x = 3,466,259,817,476.51/2,079,669.79 - Step 6: Final answer
x = 1,666,735.67
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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.