Finding the Fourth Proportional to 522,267.85, 720,665.13 and 318,244.42
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Solution
The fourth proportional to 522,267.85, 720,665.13 and 318,244.42 is: 439,137.99
Step by Step Solution
- Step 1: Write the proportion equation
522,267.85 : 720,665.13 = 318,244.42 : x - Step 2: Convert to fraction form
522,267.85/720,665.13 = 318,244.42/x - Step 3: Cross multiply
522,267.85x = 720,665.13 × 318,244.42 - Step 4: Simplify right side
522,267.85x = 229,347,656,311.08 - Step 5: Solve for x
x = 229,347,656,311.08/522,267.85 - Step 6: Final answer
x = 439,137.99
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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.