Finding the Fourth Proportional to 1,283,431.28, 1,771,135.72 and 702,692.08
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Solution
The fourth proportional to 1,283,431.28, 1,771,135.72 and 702,692.08 is: 969,715.37
Step by Step Solution
- Step 1: Write the proportion equation
1,283,431.28 : 1,771,135.72 = 702,692.08 : x - Step 2: Convert to fraction form
1,283,431.28/1,771,135.72 = 702,692.08/x - Step 3: Cross multiply
1,283,431.28x = 1,771,135.72 × 702,692.08 - Step 4: Simplify right side
1,283,431.28x = 1,244,563,043,049.10 - Step 5: Solve for x
x = 1,244,563,043,049.10/1,283,431.28 - Step 6: Final answer
x = 969,715.37
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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.