Finding the Fourth Proportional to 2,128,249.90, 2,937,047.30 and 1,161,442.63
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Solution
The fourth proportional to 2,128,249.90, 2,937,047.30 and 1,161,442.63 is: 1,602,824.90
Step by Step Solution
- Step 1: Write the proportion equation
2,128,249.90 : 2,937,047.30 = 1,161,442.63 : x - Step 2: Convert to fraction form
2,128,249.90/2,937,047.30 = 1,161,442.63/x - Step 3: Cross multiply
2,128,249.90x = 2,937,047.30 × 1,161,442.63 - Step 4: Simplify right side
2,128,249.90x = 3,411,211,940,546.40 - Step 5: Solve for x
x = 3,411,211,940,546.40/2,128,249.90 - Step 6: Final answer
x = 1,602,824.90
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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.