Finding the Fourth Proportional to 394,598.76, 591,903.62 and 128,360.68
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Solution
The fourth proportional to 394,598.76, 591,903.62 and 128,360.68 is: 192,542.80
Step by Step Solution
- Step 1: Write the proportion equation
394,598.76 : 591,903.62 = 128,360.68 : x - Step 2: Convert to fraction form
394,598.76/591,903.62 = 128,360.68/x - Step 3: Cross multiply
394,598.76x = 591,903.62 × 128,360.68 - Step 4: Simplify right side
394,598.76x = 75,977,151,157.66 - Step 5: Solve for x
x = 75,977,151,157.66/394,598.76 - Step 6: Final answer
x = 192,542.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.