Finding the Fourth Proportional to 747,934.72, 1,121,235.18 and 274,510.24
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Solution
The fourth proportional to 747,934.72, 1,121,235.18 and 274,510.24 is: 411,520.59
Step by Step Solution
- Step 1: Write the proportion equation
747,934.72 : 1,121,235.18 = 274,510.24 : x - Step 2: Convert to fraction form
747,934.72/1,121,235.18 = 274,510.24/x - Step 3: Cross multiply
747,934.72x = 1,121,235.18 × 274,510.24 - Step 4: Simplify right side
747,934.72x = 307,790,538,358.24 - Step 5: Solve for x
x = 307,790,538,358.24/747,934.72 - Step 6: Final answer
x = 411,520.59
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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.