Finding the Fourth Proportional to 828,120.13, 1,242,036.11 and 267,154.63
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Solution
The fourth proportional to 828,120.13, 1,242,036.11 and 267,154.63 is: 400,685.46
Step by Step Solution
- Step 1: Write the proportion equation
828,120.13 : 1,242,036.11 = 267,154.63 : x - Step 2: Convert to fraction form
828,120.13/1,242,036.11 = 267,154.63/x - Step 3: Cross multiply
828,120.13x = 1,242,036.11 × 267,154.63 - Step 4: Simplify right side
828,120.13x = 331,815,694,976.49 - Step 5: Solve for x
x = 331,815,694,976.49/828,120.13 - Step 6: Final answer
x = 400,685.46
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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.