Finding the Fourth Proportional to 819,101.98, 1,229,206.56 and 286,627.62
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Solution
The fourth proportional to 819,101.98, 1,229,206.56 and 286,627.62 is: 430,135.15
Step by Step Solution
- Step 1: Write the proportion equation
819,101.98 : 1,229,206.56 = 286,627.62 : x - Step 2: Convert to fraction form
819,101.98/1,229,206.56 = 286,627.62/x - Step 3: Cross multiply
819,101.98x = 1,229,206.56 × 286,627.62 - Step 4: Simplify right side
819,101.98x = 352,324,550,858.72 - Step 5: Solve for x
x = 352,324,550,858.72/819,101.98 - Step 6: Final answer
x = 430,135.15
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1.5x scale
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.