Finding the Fourth Proportional to 1,227,964.14, 1,694,624.16 and 769,035.78
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Solution
The fourth proportional to 1,227,964.14, 1,694,624.16 and 769,035.78 is: 1,061,290.45
Step by Step Solution
- Step 1: Write the proportion equation
1,227,964.14 : 1,694,624.16 = 769,035.78 : x - Step 2: Convert to fraction form
1,227,964.14/1,694,624.16 = 769,035.78/x - Step 3: Cross multiply
1,227,964.14x = 1,694,624.16 × 769,035.78 - Step 4: Simplify right side
1,227,964.14x = 1,303,226,612,692.44 - Step 5: Solve for x
x = 1,303,226,612,692.44/1,227,964.14 - Step 6: Final answer
x = 1,061,290.45
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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.