Finding the Fourth Proportional to 667,082.61, 920,574.30 and 361,158.99
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Solution
The fourth proportional to 667,082.61, 920,574.30 and 361,158.99 is: 498,399.57
Step by Step Solution
- Step 1: Write the proportion equation
667,082.61 : 920,574.30 = 361,158.99 : x - Step 2: Convert to fraction form
667,082.61/920,574.30 = 361,158.99/x - Step 3: Cross multiply
667,082.61x = 920,574.30 × 361,158.99 - Step 4: Simplify right side
667,082.61x = 332,473,684,407.96 - Step 5: Solve for x
x = 332,473,684,407.96/667,082.61 - Step 6: Final answer
x = 498,399.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.