Finding the Fourth Proportional to 747,191.10, 1,121,114.70 and 347,626.20
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Solution
The fourth proportional to 747,191.10, 1,121,114.70 and 347,626.20 is: 521,591.92
Step by Step Solution
- Step 1: Write the proportion equation
747,191.10 : 1,121,114.70 = 347,626.20 : x - Step 2: Convert to fraction form
747,191.10/1,121,114.70 = 347,626.20/x - Step 3: Cross multiply
747,191.10x = 1,121,114.70 × 347,626.20 - Step 4: Simplify right side
747,191.10x = 389,728,842,925.14 - Step 5: Solve for x
x = 389,728,842,925.14/747,191.10 - Step 6: Final answer
x = 521,591.92
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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.