Finding the Fourth Proportional to 529,110.09, 730,177.84 and 311,366.90
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Solution
The fourth proportional to 529,110.09, 730,177.84 and 311,366.90 is: 429,689.81
Step by Step Solution
- Step 1: Write the proportion equation
529,110.09 : 730,177.84 = 311,366.90 : x - Step 2: Convert to fraction form
529,110.09/730,177.84 = 311,366.90/x - Step 3: Cross multiply
529,110.09x = 730,177.84 × 311,366.90 - Step 4: Simplify right side
529,110.09x = 227,353,212,704.15 - Step 5: Solve for x
x = 227,353,212,704.15/529,110.09 - Step 6: Final answer
x = 429,689.81
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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.