Finding the Fourth Proportional to 694,140.70, 1,041,211.05 and 320,163.70
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Solution
The fourth proportional to 694,140.70, 1,041,211.05 and 320,163.70 is: 480,245.55
Step by Step Solution
- Step 1: Write the proportion equation
694,140.70 : 1,041,211.05 = 320,163.70 : x - Step 2: Convert to fraction form
694,140.70/1,041,211.05 = 320,163.70/x - Step 3: Cross multiply
694,140.70x = 1,041,211.05 × 320,163.70 - Step 4: Simplify right side
694,140.70x = 333,357,982,248.89 - Step 5: Solve for x
x = 333,357,982,248.89/694,140.70 - Step 6: Final answer
x = 480,245.55
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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.