Finding the Fourth Proportional to 518,250.95, 715,186.99 and 288,803.20
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Solution
The fourth proportional to 518,250.95, 715,186.99 and 288,803.20 is: 398,548.79
Step by Step Solution
- Step 1: Write the proportion equation
518,250.95 : 715,186.99 = 288,803.20 : x - Step 2: Convert to fraction form
518,250.95/715,186.99 = 288,803.20/x - Step 3: Cross multiply
518,250.95x = 715,186.99 × 288,803.20 - Step 4: Simplify right side
518,250.95x = 206,548,287,734.43 - Step 5: Solve for x
x = 206,548,287,734.43/518,250.95 - Step 6: Final answer
x = 398,548.79
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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.