Finding the Fourth Proportional to 2,114,631.10, 2,918,112.76 and 1,147,740.62
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Solution
The fourth proportional to 2,114,631.10, 2,918,112.76 and 1,147,740.62 is: 1,583,839.63
Step by Step Solution
- Step 1: Write the proportion equation
2,114,631.10 : 2,918,112.76 = 1,147,740.62 : x - Step 2: Convert to fraction form
2,114,631.10/2,918,112.76 = 1,147,740.62/x - Step 3: Cross multiply
2,114,631.10x = 2,918,112.76 × 1,147,740.62 - Step 4: Simplify right side
2,114,631.10x = 3,349,236,548,392.31 - Step 5: Solve for x
x = 3,349,236,548,392.31/2,114,631.10 - Step 6: Final answer
x = 1,583,839.63
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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.