Finding the Fourth Proportional to 1,311,557.84, 1,967,406.54 and 413,069.84
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Solution
The fourth proportional to 1,311,557.84, 1,967,406.54 and 413,069.84 is: 619,626.74
Step by Step Solution
- Step 1: Write the proportion equation
1,311,557.84 : 1,967,406.54 = 413,069.84 : x - Step 2: Convert to fraction form
1,311,557.84/1,967,406.54 = 413,069.84/x - Step 3: Cross multiply
1,311,557.84x = 1,967,406.54 × 413,069.84 - Step 4: Simplify right side
1,311,557.84x = 812,676,304,692.75 - Step 5: Solve for x
x = 812,676,304,692.75/1,311,557.84 - Step 6: Final answer
x = 619,626.74
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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.