Finding the Fourth Proportional to 646,692.40, 969,616.14 and 309,722.08
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Solution
The fourth proportional to 646,692.40, 969,616.14 and 309,722.08 is: 464,380.79
Step by Step Solution
- Step 1: Write the proportion equation
646,692.40 : 969,616.14 = 309,722.08 : x - Step 2: Convert to fraction form
646,692.40/969,616.14 = 309,722.08/x - Step 3: Cross multiply
646,692.40x = 969,616.14 × 309,722.08 - Step 4: Simplify right side
646,692.40x = 300,311,527,682.37 - Step 5: Solve for x
x = 300,311,527,682.37/646,692.40 - Step 6: Final answer
x = 464,380.79
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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.