Finding the Fourth Proportional to 879,923.97, 1,214,295.09 and 477,515.97
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Solution
The fourth proportional to 879,923.97, 1,214,295.09 and 477,515.97 is: 658,972.04
Step by Step Solution
- Step 1: Write the proportion equation
879,923.97 : 1,214,295.09 = 477,515.97 : x - Step 2: Convert to fraction form
879,923.97/1,214,295.09 = 477,515.97/x - Step 3: Cross multiply
879,923.97x = 1,214,295.09 × 477,515.97 - Step 4: Simplify right side
879,923.97x = 579,845,295,380.01 - Step 5: Solve for x
x = 579,845,295,380.01/879,923.97 - Step 6: Final answer
x = 658,972.04
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1.5x scale
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.