Finding the Fourth Proportional to 410,135.70, 615,203.55 and 394,389.30
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Solution
The fourth proportional to 410,135.70, 615,203.55 and 394,389.30 is: 591,583.95
Step by Step Solution
- Step 1: Write the proportion equation
410,135.70 : 615,203.55 = 394,389.30 : x - Step 2: Convert to fraction form
410,135.70/615,203.55 = 394,389.30/x - Step 3: Cross multiply
410,135.70x = 615,203.55 × 394,389.30 - Step 4: Simplify right side
410,135.70x = 242,629,697,442.02 - Step 5: Solve for x
x = 242,629,697,442.02/410,135.70 - Step 6: Final answer
x = 591,583.95
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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.