Finding the Fourth Proportional to 660,863.40, 992,072.70 and 656,197.80
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Solution
The fourth proportional to 660,863.40, 992,072.70 and 656,197.80 is: 985,068.81
Step by Step Solution
- Step 1: Write the proportion equation
660,863.40 : 992,072.70 = 656,197.80 : x - Step 2: Convert to fraction form
660,863.40/992,072.70 = 656,197.80/x - Step 3: Cross multiply
660,863.40x = 992,072.70 × 656,197.80 - Step 4: Simplify right side
660,863.40x = 650,995,923,180.06 - Step 5: Solve for x
x = 650,995,923,180.06/660,863.40 - Step 6: Final answer
x = 985,068.81
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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.