Finding the Fourth Proportional to 772,169.68, 1,158,286.92 and 211,203.28
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Solution
The fourth proportional to 772,169.68, 1,158,286.92 and 211,203.28 is: 316,813.78
Step by Step Solution
- Step 1: Write the proportion equation
772,169.68 : 1,158,286.92 = 211,203.28 : x - Step 2: Convert to fraction form
772,169.68/1,158,286.92 = 211,203.28/x - Step 3: Cross multiply
772,169.68x = 1,158,286.92 × 211,203.28 - Step 4: Simplify right side
772,169.68x = 244,633,996,685.10 - Step 5: Solve for x
x = 244,633,996,685.10/772,169.68 - Step 6: Final answer
x = 316,813.78
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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.