Finding the Fourth Proportional to 522,265.35, 720,661.68 and 318,241.92
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Solution
The fourth proportional to 522,265.35, 720,661.68 and 318,241.92 is: 439,134.54
Step by Step Solution
- Step 1: Write the proportion equation
522,265.35 : 720,661.68 = 318,241.92 : x - Step 2: Convert to fraction form
522,265.35/720,661.68 = 318,241.92/x - Step 3: Cross multiply
522,265.35x = 720,661.68 × 318,241.92 - Step 4: Simplify right side
522,265.35x = 229,344,756,713.63 - Step 5: Solve for x
x = 229,344,756,713.63/522,265.35 - Step 6: Final answer
x = 439,134.54
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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.