Finding the Fourth Proportional to 912,489.12, 1,259,243.13 and 504,618.42
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Solution
The fourth proportional to 912,489.12, 1,259,243.13 and 504,618.42 is: 696,377.92
Step by Step Solution
- Step 1: Write the proportion equation
912,489.12 : 1,259,243.13 = 504,618.42 : x - Step 2: Convert to fraction form
912,489.12/1,259,243.13 = 504,618.42/x - Step 3: Cross multiply
912,489.12x = 1,259,243.13 × 504,618.42 - Step 4: Simplify right side
912,489.12x = 635,437,278,656.46 - Step 5: Solve for x
x = 635,437,278,656.46/912,489.12 - Step 6: Final answer
x = 696,377.92
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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.