Finding the Fourth Proportional to 526,348.09, 789,514.80 and 126,985.49
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Solution
The fourth proportional to 526,348.09, 789,514.80 and 126,985.49 is: 190,476.47
Step by Step Solution
- Step 1: Write the proportion equation
526,348.09 : 789,514.80 = 126,985.49 : x - Step 2: Convert to fraction form
526,348.09/789,514.80 = 126,985.49/x - Step 3: Cross multiply
526,348.09x = 789,514.80 × 126,985.49 - Step 4: Simplify right side
526,348.09x = 100,256,923,740.25 - Step 5: Solve for x
x = 100,256,923,740.25/526,348.09 - Step 6: Final answer
x = 190,476.47
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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.