Finding the Fourth Proportional to 930,939.66, 1,396,518.81 and 331,985.97
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Solution
The fourth proportional to 930,939.66, 1,396,518.81 and 331,985.97 is: 498,017.94
Step by Step Solution
- Step 1: Write the proportion equation
930,939.66 : 1,396,518.81 = 331,985.97 : x - Step 2: Convert to fraction form
930,939.66/1,396,518.81 = 331,985.97/x - Step 3: Cross multiply
930,939.66x = 1,396,518.81 × 331,985.97 - Step 4: Simplify right side
930,939.66x = 463,624,651,761.10 - Step 5: Solve for x
x = 463,624,651,761.10/930,939.66 - Step 6: Final answer
x = 498,017.94
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1.5x scale
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.