Finding the Fourth Proportional to 918,428.71, 1,267,446.77 and 504,982.97
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Solution
The fourth proportional to 918,428.71, 1,267,446.77 and 504,982.97 is: 696,884.82
Step by Step Solution
- Step 1: Write the proportion equation
918,428.71 : 1,267,446.77 = 504,982.97 : x - Step 2: Convert to fraction form
918,428.71/1,267,446.77 = 504,982.97/x - Step 3: Cross multiply
918,428.71x = 1,267,446.77 × 504,982.97 - Step 4: Simplify right side
918,428.71x = 640,039,032,378.05 - Step 5: Solve for x
x = 640,039,032,378.05/918,428.71 - Step 6: Final answer
x = 696,884.82
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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.