Finding the Fourth Proportional to 721,336.64, 1,082,077.12 and 247,959.68
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Solution
The fourth proportional to 721,336.64, 1,082,077.12 and 247,959.68 is: 371,964.33
Step by Step Solution
- Step 1: Write the proportion equation
721,336.64 : 1,082,077.12 = 247,959.68 : x - Step 2: Convert to fraction form
721,336.64/1,082,077.12 = 247,959.68/x - Step 3: Cross multiply
721,336.64x = 1,082,077.12 × 247,959.68 - Step 4: Simplify right side
721,336.64x = 268,311,496,410.52 - Step 5: Solve for x
x = 268,311,496,410.52/721,336.64 - Step 6: Final answer
x = 371,964.33
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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.