Finding the Fourth Proportional to 640,912.26, 884,191.77 and 368,915.07
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Solution
The fourth proportional to 640,912.26, 884,191.77 and 368,915.07 is: 508,949.02
Step by Step Solution
- Step 1: Write the proportion equation
640,912.26 : 884,191.77 = 368,915.07 : x - Step 2: Convert to fraction form
640,912.26/884,191.77 = 368,915.07/x - Step 3: Cross multiply
640,912.26x = 884,191.77 × 368,915.07 - Step 4: Simplify right side
640,912.26x = 326,191,668,722.97 - Step 5: Solve for x
x = 326,191,668,722.97/640,912.26 - Step 6: Final answer
x = 508,949.02
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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.