Finding the Fourth Proportional to 520,206.26, 780,309.40 and 126,222.26
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Solution
The fourth proportional to 520,206.26, 780,309.40 and 126,222.26 is: 189,333.39
Step by Step Solution
- Step 1: Write the proportion equation
520,206.26 : 780,309.40 = 126,222.26 : x - Step 2: Convert to fraction form
520,206.26/780,309.40 = 126,222.26/x - Step 3: Cross multiply
520,206.26x = 780,309.40 × 126,222.26 - Step 4: Simplify right side
520,206.26x = 98,492,415,967.24 - Step 5: Solve for x
x = 98,492,415,967.24/520,206.26 - Step 6: Final answer
x = 189,333.39
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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.