Finding the Fourth Proportional to 509,436.92, 764,823.12 and 341,707.68
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Solution
The fourth proportional to 509,436.92, 764,823.12 and 341,707.68 is: 513,009.41
Step by Step Solution
- Step 1: Write the proportion equation
509,436.92 : 764,823.12 = 341,707.68 : x - Step 2: Convert to fraction form
509,436.92/764,823.12 = 341,707.68/x - Step 3: Cross multiply
509,436.92x = 764,823.12 × 341,707.68 - Step 4: Simplify right side
509,436.92x = 261,345,933,945.56 - Step 5: Solve for x
x = 261,345,933,945.56/509,436.92 - Step 6: Final answer
x = 513,009.41
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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.