Finding the Fourth Proportional to 645,276.96, 966,583.80 and 378,226.44
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Solution
The fourth proportional to 645,276.96, 966,583.80 and 378,226.44 is: 566,559.12
Step by Step Solution
- Step 1: Write the proportion equation
645,276.96 : 966,583.80 = 378,226.44 : x - Step 2: Convert to fraction form
645,276.96/966,583.80 = 378,226.44/x - Step 3: Cross multiply
645,276.96x = 966,583.80 × 378,226.44 - Step 4: Simplify right side
645,276.96x = 365,587,549,635.67 - Step 5: Solve for x
x = 365,587,549,635.67/645,276.96 - Step 6: Final answer
x = 566,559.12
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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.