Finding the Fourth Proportional to 694,378.84, 1,041,568.26 and 658,920.28
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Solution
The fourth proportional to 694,378.84, 1,041,568.26 and 658,920.28 is: 988,380.42
Step by Step Solution
- Step 1: Write the proportion equation
694,378.84 : 1,041,568.26 = 658,920.28 : x - Step 2: Convert to fraction form
694,378.84/1,041,568.26 = 658,920.28/x - Step 3: Cross multiply
694,378.84x = 1,041,568.26 × 658,920.28 - Step 4: Simplify right side
694,378.84x = 686,310,449,518.31 - Step 5: Solve for x
x = 686,310,449,518.31/694,378.84 - Step 6: Final answer
x = 988,380.42
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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.