Finding the Fourth Proportional to 643,523.20, 965,122.86 and 264,549.62
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Solution
The fourth proportional to 643,523.20, 965,122.86 and 264,549.62 is: 396,757.86
Step by Step Solution
- Step 1: Write the proportion equation
643,523.20 : 965,122.86 = 264,549.62 : x - Step 2: Convert to fraction form
643,523.20/965,122.86 = 264,549.62/x - Step 3: Cross multiply
643,523.20x = 965,122.86 × 264,549.62 - Step 4: Simplify right side
643,523.20x = 255,322,885,866.31 - Step 5: Solve for x
x = 255,322,885,866.31/643,523.20 - Step 6: Final answer
x = 396,757.86
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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.