Finding the Fourth Proportional to 930,623.08, 1,396,629.34 and 691,289.56
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Solution
The fourth proportional to 930,623.08, 1,396,629.34 and 691,289.56 is: 1,037,450.39
Step by Step Solution
- Step 1: Write the proportion equation
930,623.08 : 1,396,629.34 = 691,289.56 : x - Step 2: Convert to fraction form
930,623.08/1,396,629.34 = 691,289.56/x - Step 3: Cross multiply
930,623.08x = 1,396,629.34 × 691,289.56 - Step 4: Simplify right side
930,623.08x = 965,475,281,931.69 - Step 5: Solve for x
x = 965,475,281,931.69/930,623.08 - Step 6: Final answer
x = 1,037,450.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.