Finding the Fourth Proportional to 439,427.70, 659,141.55 and 252,803.70
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Solution
The fourth proportional to 439,427.70, 659,141.55 and 252,803.70 is: 379,205.55
Step by Step Solution
- Step 1: Write the proportion equation
439,427.70 : 659,141.55 = 252,803.70 : x - Step 2: Convert to fraction form
439,427.70/659,141.55 = 252,803.70/x - Step 3: Cross multiply
439,427.70x = 659,141.55 × 252,803.70 - Step 4: Simplify right side
439,427.70x = 166,633,422,663.74 - Step 5: Solve for x
x = 166,633,422,663.74/439,427.70 - Step 6: Final answer
x = 379,205.55
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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.