Finding the Fourth Proportional to 828,121.24, 1,242,182.14 and 259,546.45
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Solution
The fourth proportional to 828,121.24, 1,242,182.14 and 259,546.45 is: 389,319.76
Step by Step Solution
- Step 1: Write the proportion equation
828,121.24 : 1,242,182.14 = 259,546.45 : x - Step 2: Convert to fraction form
828,121.24/1,242,182.14 = 259,546.45/x - Step 3: Cross multiply
828,121.24x = 1,242,182.14 × 259,546.45 - Step 4: Simplify right side
828,121.24x = 322,403,964,690.40 - Step 5: Solve for x
x = 322,403,964,690.40/828,121.24 - Step 6: Final answer
x = 389,319.76
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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.