Finding the Fourth Proportional to 512,516.64, 707,207.04 and 286,171.68
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Solution
The fourth proportional to 512,516.64, 707,207.04 and 286,171.68 is: 394,880.11
Step by Step Solution
- Step 1: Write the proportion equation
512,516.64 : 707,207.04 = 286,171.68 : x - Step 2: Convert to fraction form
512,516.64/707,207.04 = 286,171.68/x - Step 3: Cross multiply
512,516.64x = 707,207.04 × 286,171.68 - Step 4: Simplify right side
512,516.64x = 202,382,626,744.63 - Step 5: Solve for x
x = 202,382,626,744.63/512,516.64 - Step 6: Final answer
x = 394,880.11
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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.