Finding the Fourth Proportional to 393,912.60, 590,941.80 and 127,681.80
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Solution
The fourth proportional to 393,912.60, 590,941.80 and 127,681.80 is: 191,546.33
Step by Step Solution
- Step 1: Write the proportion equation
393,912.60 : 590,941.80 = 127,681.80 : x - Step 2: Convert to fraction form
393,912.60/590,941.80 = 127,681.80/x - Step 3: Cross multiply
393,912.60x = 590,941.80 × 127,681.80 - Step 4: Simplify right side
393,912.60x = 75,452,512,719.24 - Step 5: Solve for x
x = 75,452,512,719.24/393,912.60 - Step 6: Final answer
x = 191,546.33
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.