Finding the Fourth Proportional to 1,048,722.40, 1,574,266.20 and 694,428.40
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Solution
The fourth proportional to 1,048,722.40, 1,574,266.20 and 694,428.40 is: 1,042,425.68
Step by Step Solution
- Step 1: Write the proportion equation
1,048,722.40 : 1,574,266.20 = 694,428.40 : x - Step 2: Convert to fraction form
1,048,722.40/1,574,266.20 = 694,428.40/x - Step 3: Cross multiply
1,048,722.40x = 1,574,266.20 × 694,428.40 - Step 4: Simplify right side
1,048,722.40x = 1,093,215,158,440.08 - Step 5: Solve for x
x = 1,093,215,158,440.08/1,048,722.40 - Step 6: Final answer
x = 1,042,425.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.