Finding the Fourth Proportional to 520,857.24, 781,316.37 and 201,010.78
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Solution
The fourth proportional to 520,857.24, 781,316.37 and 201,010.78 is: 301,527.94
Step by Step Solution
- Step 1: Write the proportion equation
520,857.24 : 781,316.37 = 201,010.78 : x - Step 2: Convert to fraction form
520,857.24/781,316.37 = 201,010.78/x - Step 3: Cross multiply
520,857.24x = 781,316.37 × 201,010.78 - Step 4: Simplify right side
520,857.24x = 157,053,012,960.47 - Step 5: Solve for x
x = 157,053,012,960.47/520,857.24 - Step 6: Final answer
x = 301,527.94
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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.