Finding the Fourth Proportional to 831,827.84, 1,147,925.87 and 449,854.62
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Solution
The fourth proportional to 831,827.84, 1,147,925.87 and 449,854.62 is: 620,801.24
Step by Step Solution
- Step 1: Write the proportion equation
831,827.84 : 1,147,925.87 = 449,854.62 : x - Step 2: Convert to fraction form
831,827.84/1,147,925.87 = 449,854.62/x - Step 3: Cross multiply
831,827.84x = 1,147,925.87 × 449,854.62 - Step 4: Simplify right side
831,827.84x = 516,399,753,787.75 - Step 5: Solve for x
x = 516,399,753,787.75/831,827.84 - Step 6: Final answer
x = 620,801.24
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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.