Finding the Fourth Proportional to 438,472.24, 605,074.88 and 275,216.09
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Solution
The fourth proportional to 438,472.24, 605,074.88 and 275,216.09 is: 379,787.66
Step by Step Solution
- Step 1: Write the proportion equation
438,472.24 : 605,074.88 = 275,216.09 : x - Step 2: Convert to fraction form
438,472.24/605,074.88 = 275,216.09/x - Step 3: Cross multiply
438,472.24x = 605,074.88 × 275,216.09 - Step 4: Simplify right side
438,472.24x = 166,526,344,831.55 - Step 5: Solve for x
x = 166,526,344,831.55/438,472.24 - Step 6: Final answer
x = 379,787.66
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1.5x scale
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.