Finding the Fourth Proportional to 5,640,202.87, 7,782,658.81 and 3,225,288.31
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Solution
The fourth proportional to 5,640,202.87, 7,782,658.81 and 3,225,288.31 is: 4,450,428.30
Step by Step Solution
- Step 1: Write the proportion equation
5,640,202.87 : 7,782,658.81 = 3,225,288.31 : x - Step 2: Convert to fraction form
5,640,202.87/7,782,658.81 = 3,225,288.31/x - Step 3: Cross multiply
5,640,202.87x = 7,782,658.81 × 3,225,288.31 - Step 4: Simplify right side
5,640,202.87x = 25,101,318,480,611.51 - Step 5: Solve for x
x = 25,101,318,480,611.51/5,640,202.87 - Step 6: Final answer
x = 4,450,428.30
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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.