Finding the Fourth Proportional to 529,529.86, 730,756.05 and 287,812.99
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Solution
The fourth proportional to 529,529.86, 730,756.05 and 287,812.99 is: 397,184.56
Step by Step Solution
- Step 1: Write the proportion equation
529,529.86 : 730,756.05 = 287,812.99 : x - Step 2: Convert to fraction form
529,529.86/730,756.05 = 287,812.99/x - Step 3: Cross multiply
529,529.86x = 730,756.05 × 287,812.99 - Step 4: Simplify right side
529,529.86x = 210,321,080,057.31 - Step 5: Solve for x
x = 210,321,080,057.31/529,529.86 - Step 6: Final answer
x = 397,184.56
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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.