Finding the Fourth Proportional to 868,214.16, 1,198,107.56 and 481,013.68
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Solution
The fourth proportional to 868,214.16, 1,198,107.56 and 481,013.68 is: 663,783.38
Step by Step Solution
- Step 1: Write the proportion equation
868,214.16 : 1,198,107.56 = 481,013.68 : x - Step 2: Convert to fraction form
868,214.16/1,198,107.56 = 481,013.68/x - Step 3: Cross multiply
868,214.16x = 1,198,107.56 × 481,013.68 - Step 4: Simplify right side
868,214.16x = 576,306,126,471.42 - Step 5: Solve for x
x = 576,306,126,471.42/868,214.16 - Step 6: Final answer
x = 663,783.38
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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.