Finding the Fourth Proportional to 831,827.51, 1,147,925.42 and 449,854.29
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Solution
The fourth proportional to 831,827.51, 1,147,925.42 and 449,854.29 is: 620,800.79
Step by Step Solution
- Step 1: Write the proportion equation
831,827.51 : 1,147,925.42 = 449,854.29 : x - Step 2: Convert to fraction form
831,827.51/1,147,925.42 = 449,854.29/x - Step 3: Cross multiply
831,827.51x = 1,147,925.42 × 449,854.29 - Step 4: Simplify right side
831,827.51x = 516,399,174,787.05 - Step 5: Solve for x
x = 516,399,174,787.05/831,827.51 - Step 6: Final answer
x = 620,800.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.