Finding the Fourth Proportional to 868,635.26, 1,198,765.68 and 486,785.06
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Solution
The fourth proportional to 868,635.26, 1,198,765.68 and 486,785.06 is: 671,790.85
Step by Step Solution
- Step 1: Write the proportion equation
868,635.26 : 1,198,765.68 = 486,785.06 : x - Step 2: Convert to fraction form
868,635.26/1,198,765.68 = 486,785.06/x - Step 3: Cross multiply
868,635.26x = 1,198,765.68 × 486,785.06 - Step 4: Simplify right side
868,635.26x = 583,541,223,464.74 - Step 5: Solve for x
x = 583,541,223,464.74/868,635.26 - Step 6: Final answer
x = 671,790.85
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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.