Finding the Fourth Proportional to 573,563.79, 791,513.19 and 318,912.75
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Solution
The fourth proportional to 573,563.79, 791,513.19 and 318,912.75 is: 440,096.90
Step by Step Solution
- Step 1: Write the proportion equation
573,563.79 : 791,513.19 = 318,912.75 : x - Step 2: Convert to fraction form
573,563.79/791,513.19 = 318,912.75/x - Step 3: Cross multiply
573,563.79x = 791,513.19 × 318,912.75 - Step 4: Simplify right side
573,563.79x = 252,423,648,084.17 - Step 5: Solve for x
x = 252,423,648,084.17/573,563.79 - Step 6: Final answer
x = 440,096.90
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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.