Finding the Fourth Proportional to 512,946.40, 769,503.84 and 157,960.48
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Solution
The fourth proportional to 512,946.40, 769,503.84 and 157,960.48 is: 236,966.66
Step by Step Solution
- Step 1: Write the proportion equation
512,946.40 : 769,503.84 = 157,960.48 : x - Step 2: Convert to fraction form
512,946.40/769,503.84 = 157,960.48/x - Step 3: Cross multiply
512,946.40x = 769,503.84 × 157,960.48 - Step 4: Simplify right side
512,946.40x = 121,551,195,928.24 - Step 5: Solve for x
x = 121,551,195,928.24/512,946.40 - Step 6: Final answer
x = 236,966.66
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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.