Finding the Fourth Proportional to 857,268.54, 1,285,972.92 and 430,584.96
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Solution
The fourth proportional to 857,268.54, 1,285,972.92 and 430,584.96 is: 645,912.65
Step by Step Solution
- Step 1: Write the proportion equation
857,268.54 : 1,285,972.92 = 430,584.96 : x - Step 2: Convert to fraction form
857,268.54/1,285,972.92 = 430,584.96/x - Step 3: Cross multiply
857,268.54x = 1,285,972.92 × 430,584.96 - Step 4: Simplify right side
857,268.54x = 553,720,598,319.28 - Step 5: Solve for x
x = 553,720,598,319.28/857,268.54 - Step 6: Final answer
x = 645,912.65
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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.