Finding the Fourth Proportional to 1,150,276.79, 1,587,388.29 and 667,128.44
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Solution
The fourth proportional to 1,150,276.79, 1,587,388.29 and 667,128.44 is: 920,640.91
Step by Step Solution
- Step 1: Write the proportion equation
1,150,276.79 : 1,587,388.29 = 667,128.44 : x - Step 2: Convert to fraction form
1,150,276.79/1,587,388.29 = 667,128.44/x - Step 3: Cross multiply
1,150,276.79x = 1,587,388.29 × 667,128.44 - Step 4: Simplify right side
1,150,276.79x = 1,058,991,873,581.97 - Step 5: Solve for x
x = 1,058,991,873,581.97/1,150,276.79 - Step 6: Final answer
x = 920,640.91
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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.