Finding the Fourth Proportional to 410,497.20, 615,745.80 and 394,750.80
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Solution
The fourth proportional to 410,497.20, 615,745.80 and 394,750.80 is: 592,126.20
Step by Step Solution
- Step 1: Write the proportion equation
410,497.20 : 615,745.80 = 394,750.80 : x - Step 2: Convert to fraction form
410,497.20/615,745.80 = 394,750.80/x - Step 3: Cross multiply
410,497.20x = 615,745.80 × 394,750.80 - Step 4: Simplify right side
410,497.20x = 243,066,147,146.64 - Step 5: Solve for x
x = 243,066,147,146.64/410,497.20 - Step 6: Final answer
x = 592,126.20
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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.