Finding the Fourth Proportional to 520,082.52, 717,728.09 and 293,728.02
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Solution
The fourth proportional to 520,082.52, 717,728.09 and 293,728.02 is: 405,352.69
Step by Step Solution
- Step 1: Write the proportion equation
520,082.52 : 717,728.09 = 293,728.02 : x - Step 2: Convert to fraction form
520,082.52/717,728.09 = 293,728.02/x - Step 3: Cross multiply
520,082.52x = 717,728.09 × 293,728.02 - Step 4: Simplify right side
520,082.52x = 210,816,849,305.44 - Step 5: Solve for x
x = 210,816,849,305.44/520,082.52 - Step 6: Final answer
x = 405,352.69
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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.