Finding the Fourth Proportional to 520,204.26, 780,306.40 and 126,220.26
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Solution
The fourth proportional to 520,204.26, 780,306.40 and 126,220.26 is: 189,330.39
Step by Step Solution
- Step 1: Write the proportion equation
520,204.26 : 780,306.40 = 126,220.26 : x - Step 2: Convert to fraction form
520,204.26/780,306.40 = 126,220.26/x - Step 3: Cross multiply
520,204.26x = 780,306.40 × 126,220.26 - Step 4: Simplify right side
520,204.26x = 98,490,476,687.66 - Step 5: Solve for x
x = 98,490,476,687.66/520,204.26 - Step 6: Final answer
x = 189,330.39
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Similar ratio
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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.