Finding the Fourth Proportional to 879,881.11, 1,214,235.93 and 477,473.11
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Solution
The fourth proportional to 879,881.11, 1,214,235.93 and 477,473.11 is: 658,912.89
Step by Step Solution
- Step 1: Write the proportion equation
879,881.11 : 1,214,235.93 = 477,473.11 : x - Step 2: Convert to fraction form
879,881.11/1,214,235.93 = 477,473.11/x - Step 3: Cross multiply
879,881.11x = 1,214,235.93 × 477,473.11 - Step 4: Simplify right side
879,881.11x = 579,765,005,907.21 - Step 5: Solve for x
x = 579,765,005,907.21/879,881.11 - Step 6: Final answer
x = 658,912.89
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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.