Finding the Fourth Proportional to 928,527.81, 1,392,915.65 and 367,431.09
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Solution
The fourth proportional to 928,527.81, 1,392,915.65 and 367,431.09 is: 551,195.68
Step by Step Solution
- Step 1: Write the proportion equation
928,527.81 : 1,392,915.65 = 367,431.09 : x - Step 2: Convert to fraction form
928,527.81/1,392,915.65 = 367,431.09/x - Step 3: Cross multiply
928,527.81x = 1,392,915.65 × 367,431.09 - Step 4: Simplify right side
928,527.81x = 511,800,513,720.40 - Step 5: Solve for x
x = 511,800,513,720.40/928,527.81 - Step 6: Final answer
x = 551,195.68
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1.5x scale
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.