Finding the Fourth Proportional to 858,596.64, 1,288,261.08 and 431,908.08
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Solution
The fourth proportional to 858,596.64, 1,288,261.08 and 431,908.08 is: 648,046.29
Step by Step Solution
- Step 1: Write the proportion equation
858,596.64 : 1,288,261.08 = 431,908.08 : x - Step 2: Convert to fraction form
858,596.64/1,288,261.08 = 431,908.08/x - Step 3: Cross multiply
858,596.64x = 1,288,261.08 × 431,908.08 - Step 4: Simplify right side
858,596.64x = 556,410,369,601.53 - Step 5: Solve for x
x = 556,410,369,601.53/858,596.64 - Step 6: Final answer
x = 648,046.29
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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.