Finding the Fourth Proportional to 879,364.09, 1,212,558.80 and 572,872.11
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Solution
The fourth proportional to 879,364.09, 1,212,558.80 and 572,872.11 is: 789,935.73
Step by Step Solution
- Step 1: Write the proportion equation
879,364.09 : 1,212,558.80 = 572,872.11 : x - Step 2: Convert to fraction form
879,364.09/1,212,558.80 = 572,872.11/x - Step 3: Cross multiply
879,364.09x = 1,212,558.80 × 572,872.11 - Step 4: Simplify right side
879,364.09x = 694,641,118,255.07 - Step 5: Solve for x
x = 694,641,118,255.07/879,364.09 - Step 6: Final answer
x = 789,935.73
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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.