Finding the Fourth Proportional to 642,734.63, 964,585.92 and 439,845.02
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Solution
The fourth proportional to 642,734.63, 964,585.92 and 439,845.02 is: 660,098.73
Step by Step Solution
- Step 1: Write the proportion equation
642,734.63 : 964,585.92 = 439,845.02 : x - Step 2: Convert to fraction form
642,734.63/964,585.92 = 439,845.02/x - Step 3: Cross multiply
642,734.63x = 964,585.92 × 439,845.02 - Step 4: Simplify right side
642,734.63x = 424,268,308,451.19 - Step 5: Solve for x
x = 424,268,308,451.19/642,734.63 - Step 6: Final answer
x = 660,098.73
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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.