Finding the Fourth Proportional to 764,327.70, 1,146,819.60 and 390,350.70
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Solution
The fourth proportional to 764,327.70, 1,146,819.60 and 390,350.70 is: 585,693.59
Step by Step Solution
- Step 1: Write the proportion equation
764,327.70 : 1,146,819.60 = 390,350.70 : x - Step 2: Convert to fraction form
764,327.70/1,146,819.60 = 390,350.70/x - Step 3: Cross multiply
764,327.70x = 1,146,819.60 × 390,350.70 - Step 4: Simplify right side
764,327.70x = 447,661,833,633.72 - Step 5: Solve for x
x = 447,661,833,633.72/764,327.70 - Step 6: Final answer
x = 585,693.59
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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.