Finding the Fourth Proportional to 1,021,471.89, 1,532,203.68 and 311,497.86
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Solution
The fourth proportional to 1,021,471.89, 1,532,203.68 and 311,497.86 is: 467,245.52
Step by Step Solution
- Step 1: Write the proportion equation
1,021,471.89 : 1,532,203.68 = 311,497.86 : x - Step 2: Convert to fraction form
1,021,471.89/1,532,203.68 = 311,497.86/x - Step 3: Cross multiply
1,021,471.89x = 1,532,203.68 × 311,497.86 - Step 4: Simplify right side
1,021,471.89x = 477,278,167,404.13 - Step 5: Solve for x
x = 477,278,167,404.13/1,021,471.89 - Step 6: Final answer
x = 467,245.52
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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.