Finding the Fourth Proportional to 681,618.60, 1,022,427.90 and 201,863.70
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Solution
The fourth proportional to 681,618.60, 1,022,427.90 and 201,863.70 is: 302,795.55
Step by Step Solution
- Step 1: Write the proportion equation
681,618.60 : 1,022,427.90 = 201,863.70 : x - Step 2: Convert to fraction form
681,618.60/1,022,427.90 = 201,863.70/x - Step 3: Cross multiply
681,618.60x = 1,022,427.90 × 201,863.70 - Step 4: Simplify right side
681,618.60x = 206,391,078,877.23 - Step 5: Solve for x
x = 206,391,078,877.23/681,618.60 - Step 6: Final answer
x = 302,795.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.