Finding the Fourth Proportional to 640,091.97, 883,251.60 and 353,594.97
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Solution
The fourth proportional to 640,091.97, 883,251.60 and 353,594.97 is: 487,919.45
Step by Step Solution
- Step 1: Write the proportion equation
640,091.97 : 883,251.60 = 353,594.97 : x - Step 2: Convert to fraction form
640,091.97/883,251.60 = 353,594.97/x - Step 3: Cross multiply
640,091.97x = 883,251.60 × 353,594.97 - Step 4: Simplify right side
640,091.97x = 312,313,316,820.22 - Step 5: Solve for x
x = 312,313,316,820.22/640,091.97 - Step 6: Final answer
x = 487,919.45
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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.