Finding the Fourth Proportional to 606,915.75, 837,543.74 and 338,643.75
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Solution
The fourth proportional to 606,915.75, 837,543.74 and 338,643.75 is: 467,328.38
Step by Step Solution
- Step 1: Write the proportion equation
606,915.75 : 837,543.74 = 338,643.75 : x - Step 2: Convert to fraction form
606,915.75/837,543.74 = 338,643.75/x - Step 3: Cross multiply
606,915.75x = 837,543.74 × 338,643.75 - Step 4: Simplify right side
606,915.75x = 283,628,951,209.41 - Step 5: Solve for x
x = 283,628,951,209.41/606,915.75 - Step 6: Final answer
x = 467,328.38
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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.