Finding the Fourth Proportional to 2,128,414.44, 2,937,274.14 and 1,161,606.78
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Solution
The fourth proportional to 2,128,414.44, 2,937,274.14 and 1,161,606.78 is: 1,603,051.31
Step by Step Solution
- Step 1: Write the proportion equation
2,128,414.44 : 2,937,274.14 = 1,161,606.78 : x - Step 2: Convert to fraction form
2,128,414.44/2,937,274.14 = 1,161,606.78/x - Step 3: Cross multiply
2,128,414.44x = 2,937,274.14 × 1,161,606.78 - Step 4: Simplify right side
2,128,414.44x = 3,411,957,555,742.67 - Step 5: Solve for x
x = 3,411,957,555,742.67/2,128,414.44 - Step 6: Final answer
x = 1,603,051.31
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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.