Finding the Fourth Proportional to 656,790.64, 906,372.36 and 370,310.08
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Solution
The fourth proportional to 656,790.64, 906,372.36 and 370,310.08 is: 511,028.63
Step by Step Solution
- Step 1: Write the proportion equation
656,790.64 : 906,372.36 = 370,310.08 : x - Step 2: Convert to fraction form
656,790.64/906,372.36 = 370,310.08/x - Step 3: Cross multiply
656,790.64x = 906,372.36 × 370,310.08 - Step 4: Simplify right side
656,790.64x = 335,638,821,141.39 - Step 5: Solve for x
x = 335,638,821,141.39/656,790.64 - Step 6: Final answer
x = 511,028.63
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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.