Finding the Fourth Proportional to 428,788.96, 591,724.67 and 235,192.68
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Solution
The fourth proportional to 428,788.96, 591,724.67 and 235,192.68 is: 324,563.65
Step by Step Solution
- Step 1: Write the proportion equation
428,788.96 : 591,724.67 = 235,192.68 : x - Step 2: Convert to fraction form
428,788.96/591,724.67 = 235,192.68/x - Step 3: Cross multiply
428,788.96x = 591,724.67 × 235,192.68 - Step 4: Simplify right side
428,788.96x = 139,169,309,783.45 - Step 5: Solve for x
x = 139,169,309,783.45/428,788.96 - Step 6: Final answer
x = 324,563.65
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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.