Finding the Fourth Proportional to 520,673.70, 781,130.70 and 221,163.96
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Solution
The fourth proportional to 520,673.70, 781,130.70 and 221,163.96 is: 331,796.98
Step by Step Solution
- Step 1: Write the proportion equation
520,673.70 : 781,130.70 = 221,163.96 : x - Step 2: Convert to fraction form
520,673.70/781,130.70 = 221,163.96/x - Step 3: Cross multiply
520,673.70x = 781,130.70 × 221,163.96 - Step 4: Simplify right side
520,673.70x = 172,757,958,889.57 - Step 5: Solve for x
x = 172,757,958,889.57/520,673.70 - Step 6: Final answer
x = 331,796.98
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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.