Finding the Fourth Proportional to 762,392.88, 1,143,630.36 and 201,412.08
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Solution
The fourth proportional to 762,392.88, 1,143,630.36 and 201,412.08 is: 302,128.96
Step by Step Solution
- Step 1: Write the proportion equation
762,392.88 : 1,143,630.36 = 201,412.08 : x - Step 2: Convert to fraction form
762,392.88/1,143,630.36 = 201,412.08/x - Step 3: Cross multiply
762,392.88x = 1,143,630.36 × 201,412.08 - Step 4: Simplify right side
762,392.88x = 230,340,969,558.75 - Step 5: Solve for x
x = 230,340,969,558.75/762,392.88 - Step 6: Final answer
x = 302,128.96
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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.