Finding the Fourth Proportional to 828,976.26, 1,143,987.28 and 471,280.26
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Solution
The fourth proportional to 828,976.26, 1,143,987.28 and 471,280.26 is: 650,366.78
Step by Step Solution
- Step 1: Write the proportion equation
828,976.26 : 1,143,987.28 = 471,280.26 : x - Step 2: Convert to fraction form
828,976.26/1,143,987.28 = 471,280.26/x - Step 3: Cross multiply
828,976.26x = 1,143,987.28 × 471,280.26 - Step 4: Simplify right side
828,976.26x = 539,138,622,755.09 - Step 5: Solve for x
x = 539,138,622,755.09/828,976.26 - Step 6: Final answer
x = 650,366.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.