Finding the Fourth Proportional to 815,282.51, 1,125,122.24 and 471,107.03
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Solution
The fourth proportional to 815,282.51, 1,125,122.24 and 471,107.03 is: 650,146.41
Step by Step Solution
- Step 1: Write the proportion equation
815,282.51 : 1,125,122.24 = 471,107.03 : x - Step 2: Convert to fraction form
815,282.51/1,125,122.24 = 471,107.03/x - Step 3: Cross multiply
815,282.51x = 1,125,122.24 × 471,107.03 - Step 4: Simplify right side
815,282.51x = 530,052,994,517.81 - Step 5: Solve for x
x = 530,052,994,517.81/815,282.51 - Step 6: Final answer
x = 650,146.41
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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.