Finding the Fourth Proportional to 870,354.97, 1,305,528.80 and 491,103.05
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Solution
The fourth proportional to 870,354.97, 1,305,528.80 and 491,103.05 is: 736,652.51
Step by Step Solution
- Step 1: Write the proportion equation
870,354.97 : 1,305,528.80 = 491,103.05 : x - Step 2: Convert to fraction form
870,354.97/1,305,528.80 = 491,103.05/x - Step 3: Cross multiply
870,354.97x = 1,305,528.80 × 491,103.05 - Step 4: Simplify right side
870,354.97x = 641,149,169,015.20 - Step 5: Solve for x
x = 641,149,169,015.20/870,354.97 - Step 6: Final answer
x = 736,652.51
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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.