Finding the Fourth Proportional to 748,245.08, 1,122,533.46 and 215,724.55
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Solution
The fourth proportional to 748,245.08, 1,122,533.46 and 215,724.55 is: 323,634.64
Step by Step Solution
- Step 1: Write the proportion equation
748,245.08 : 1,122,533.46 = 215,724.55 : x - Step 2: Convert to fraction form
748,245.08/1,122,533.46 = 215,724.55/x - Step 3: Cross multiply
748,245.08x = 1,122,533.46 × 215,724.55 - Step 4: Simplify right side
748,245.08x = 242,158,025,518.44 - Step 5: Solve for x
x = 242,158,025,518.44/748,245.08 - Step 6: Final answer
x = 323,634.64
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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.