Finding the Fourth Proportional to 2,057,420.60, 2,839,286.16 and 1,174,351.92
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Solution
The fourth proportional to 2,057,420.60, 2,839,286.16 and 1,174,351.92 is: 1,620,631.75
Step by Step Solution
- Step 1: Write the proportion equation
2,057,420.60 : 2,839,286.16 = 1,174,351.92 : x - Step 2: Convert to fraction form
2,057,420.60/2,839,286.16 = 1,174,351.92/x - Step 3: Cross multiply
2,057,420.60x = 2,839,286.16 × 1,174,351.92 - Step 4: Simplify right side
2,057,420.60x = 3,334,321,153,425.43 - Step 5: Solve for x
x = 3,334,321,153,425.43/2,057,420.60 - Step 6: Final answer
x = 1,620,631.75
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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.