Finding the Fourth Proportional to 1,420,836.14, 1,960,755.72 and 808,962.14
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Solution
The fourth proportional to 1,420,836.14, 1,960,755.72 and 808,962.14 is: 1,116,368.80
Step by Step Solution
- Step 1: Write the proportion equation
1,420,836.14 : 1,960,755.72 = 808,962.14 : x - Step 2: Convert to fraction form
1,420,836.14/1,960,755.72 = 808,962.14/x - Step 3: Cross multiply
1,420,836.14x = 1,960,755.72 × 808,962.14 - Step 4: Simplify right side
1,420,836.14x = 1,586,177,143,268.44 - Step 5: Solve for x
x = 1,586,177,143,268.44/1,420,836.14 - Step 6: Final answer
x = 1,116,368.80
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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.