Finding the Fourth Proportional to 399,589.08, 599,423.76 and 115,286.64
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Solution
The fourth proportional to 399,589.08, 599,423.76 and 115,286.64 is: 172,941.54
Step by Step Solution
- Step 1: Write the proportion equation
399,589.08 : 599,423.76 = 115,286.64 : x - Step 2: Convert to fraction form
399,589.08/599,423.76 = 115,286.64/x - Step 3: Cross multiply
399,589.08x = 599,423.76 × 115,286.64 - Step 4: Simplify right side
399,589.08x = 69,105,551,226.57 - Step 5: Solve for x
x = 69,105,551,226.57/399,589.08 - Step 6: Final answer
x = 172,941.54
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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.