Finding the Fourth Proportional to 640,171.44, 883,361.28 and 353,674.44
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Solution
The fourth proportional to 640,171.44, 883,361.28 and 353,674.44 is: 488,029.12
Step by Step Solution
- Step 1: Write the proportion equation
640,171.44 : 883,361.28 = 353,674.44 : x - Step 2: Convert to fraction form
640,171.44/883,361.28 = 353,674.44/x - Step 3: Cross multiply
640,171.44x = 883,361.28 × 353,674.44 - Step 4: Simplify right side
640,171.44x = 312,422,306,021.68 - Step 5: Solve for x
x = 312,422,306,021.68/640,171.44 - Step 6: Final answer
x = 488,029.12
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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.