Finding the Fourth Proportional to 985,247.20, 1,476,121.20 and 922,261.60
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Solution
The fourth proportional to 985,247.20, 1,476,121.20 and 922,261.60 is: 1,381,754.65
Step by Step Solution
- Step 1: Write the proportion equation
985,247.20 : 1,476,121.20 = 922,261.60 : x - Step 2: Convert to fraction form
985,247.20/1,476,121.20 = 922,261.60/x - Step 3: Cross multiply
985,247.20x = 1,476,121.20 × 922,261.60 - Step 4: Simplify right side
985,247.20x = 1,361,369,899,705.92 - Step 5: Solve for x
x = 1,361,369,899,705.92/985,247.20 - Step 6: Final answer
x = 1,381,754.65
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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.