Finding the Fourth Proportional to 451,029.88, 622,414.20 and 247,079.08
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Solution
The fourth proportional to 451,029.88, 622,414.20 and 247,079.08 is: 340,965.28
Step by Step Solution
- Step 1: Write the proportion equation
451,029.88 : 622,414.20 = 247,079.08 : x - Step 2: Convert to fraction form
451,029.88/622,414.20 = 247,079.08/x - Step 3: Cross multiply
451,029.88x = 622,414.20 × 247,079.08 - Step 4: Simplify right side
451,029.88x = 153,785,527,914.94 - Step 5: Solve for x
x = 153,785,527,914.94/451,029.88 - Step 6: Final answer
x = 340,965.28
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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.