Finding the Fourth Proportional to 1,369,278.38, 1,889,145.24 and 788,489.04
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Solution
The fourth proportional to 1,369,278.38, 1,889,145.24 and 788,489.04 is: 1,087,850.60
Step by Step Solution
- Step 1: Write the proportion equation
1,369,278.38 : 1,889,145.24 = 788,489.04 : x - Step 2: Convert to fraction form
1,369,278.38/1,889,145.24 = 788,489.04/x - Step 3: Cross multiply
1,369,278.38x = 1,889,145.24 × 788,489.04 - Step 4: Simplify right side
1,369,278.38x = 1,489,570,307,262.44 - Step 5: Solve for x
x = 1,489,570,307,262.44/1,369,278.38 - Step 6: Final answer
x = 1,087,850.60
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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.