Finding the Fourth Proportional to 428,414.18, 591,211.56 and 237,439.87
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Solution
The fourth proportional to 428,414.18, 591,211.56 and 237,439.87 is: 327,667.02
Step by Step Solution
- Step 1: Write the proportion equation
428,414.18 : 591,211.56 = 237,439.87 : x - Step 2: Convert to fraction form
428,414.18/591,211.56 = 237,439.87/x - Step 3: Cross multiply
428,414.18x = 591,211.56 × 237,439.87 - Step 4: Simplify right side
428,414.18x = 140,377,197,351.23 - Step 5: Solve for x
x = 140,377,197,351.23/428,414.18 - Step 6: Final answer
x = 327,667.02
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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.