Finding the Fourth Proportional to 698,987.52, 964,609.92 and 397,128.96
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Solution
The fourth proportional to 698,987.52, 964,609.92 and 397,128.96 is: 548,042.02
Step by Step Solution
- Step 1: Write the proportion equation
698,987.52 : 964,609.92 = 397,128.96 : x - Step 2: Convert to fraction form
698,987.52/964,609.92 = 397,128.96/x - Step 3: Cross multiply
698,987.52x = 964,609.92 × 397,128.96 - Step 4: Simplify right side
698,987.52x = 383,074,534,335.28 - Step 5: Solve for x
x = 383,074,534,335.28/698,987.52 - Step 6: Final answer
x = 548,042.02
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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.