Finding the Fourth Proportional to 1,181,286.26, 1,630,330.49 and 665,140.73
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Solution
The fourth proportional to 1,181,286.26, 1,630,330.49 and 665,140.73 is: 917,981.73
Step by Step Solution
- Step 1: Write the proportion equation
1,181,286.26 : 1,630,330.49 = 665,140.73 : x - Step 2: Convert to fraction form
1,181,286.26/1,630,330.49 = 665,140.73/x - Step 3: Cross multiply
1,181,286.26x = 1,630,330.49 × 665,140.73 - Step 4: Simplify right side
1,181,286.26x = 1,084,399,204,108.21 - Step 5: Solve for x
x = 1,084,399,204,108.21/1,181,286.26 - Step 6: Final answer
x = 917,981.73
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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.