Finding the Fourth Proportional to 520,190.10, 780,129.63 and 270,736.02
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Solution
The fourth proportional to 520,190.10, 780,129.63 and 270,736.02 is: 406,023.09
Step by Step Solution
- Step 1: Write the proportion equation
520,190.10 : 780,129.63 = 270,736.02 : x - Step 2: Convert to fraction form
520,190.10/780,129.63 = 270,736.02/x - Step 3: Cross multiply
520,190.10x = 780,129.63 × 270,736.02 - Step 4: Simplify right side
520,190.10x = 211,209,191,110.27 - Step 5: Solve for x
x = 211,209,191,110.27/520,190.10 - Step 6: Final answer
x = 406,023.09
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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.