Finding the Fourth Proportional to 518,251.44, 715,187.68 and 288,803.70
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Solution
The fourth proportional to 518,251.44, 715,187.68 and 288,803.70 is: 398,549.49
Step by Step Solution
- Step 1: Write the proportion equation
518,251.44 : 715,187.68 = 288,803.70 : x - Step 2: Convert to fraction form
518,251.44/715,187.68 = 288,803.70/x - Step 3: Cross multiply
518,251.44x = 715,187.68 × 288,803.70 - Step 4: Simplify right side
518,251.44x = 206,548,848,178.42 - Step 5: Solve for x
x = 206,548,848,178.42/518,251.44 - Step 6: Final answer
x = 398,549.49
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1.5x scale
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.