Finding the Fourth Proportional to 522,130.56, 720,475.66 and 318,107.44
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Solution
The fourth proportional to 522,130.56, 720,475.66 and 318,107.44 is: 438,948.96
Step by Step Solution
- Step 1: Write the proportion equation
522,130.56 : 720,475.66 = 318,107.44 : x - Step 2: Convert to fraction form
522,130.56/720,475.66 = 318,107.44/x - Step 3: Cross multiply
522,130.56x = 720,475.66 × 318,107.44 - Step 4: Simplify right side
522,130.56x = 229,188,666,194.37 - Step 5: Solve for x
x = 229,188,666,194.37/522,130.56 - Step 6: Final answer
x = 438,948.96
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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.