Finding the Fourth Proportional to 764,575.80, 1,146,207.60 and 390,598.80
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Solution
The fourth proportional to 764,575.80, 1,146,207.60 and 390,598.80 is: 585,563.02
Step by Step Solution
- Step 1: Write the proportion equation
764,575.80 : 1,146,207.60 = 390,598.80 : x - Step 2: Convert to fraction form
764,575.80/1,146,207.60 = 390,598.80/x - Step 3: Cross multiply
764,575.80x = 1,146,207.60 × 390,598.80 - Step 4: Simplify right side
764,575.80x = 447,707,313,110.88 - Step 5: Solve for x
x = 447,707,313,110.88/764,575.80 - Step 6: Final answer
x = 585,563.02
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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.