Finding the Fourth Proportional to 747,803.10, 1,121,575.05 and 274,244.70
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Solution
The fourth proportional to 747,803.10, 1,121,575.05 and 274,244.70 is: 411,319.52
Step by Step Solution
- Step 1: Write the proportion equation
747,803.10 : 1,121,575.05 = 274,244.70 : x - Step 2: Convert to fraction form
747,803.10/1,121,575.05 = 274,244.70/x - Step 3: Cross multiply
747,803.10x = 1,121,575.05 × 274,244.70 - Step 4: Simplify right side
747,803.10x = 307,586,013,114.74 - Step 5: Solve for x
x = 307,586,013,114.74/747,803.10 - Step 6: Final answer
x = 411,319.52
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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.