Finding the Fourth Proportional to 694,377.84, 1,041,566.76 and 658,919.28
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Solution
The fourth proportional to 694,377.84, 1,041,566.76 and 658,919.28 is: 988,378.92
Step by Step Solution
- Step 1: Write the proportion equation
694,377.84 : 1,041,566.76 = 658,919.28 : x - Step 2: Convert to fraction form
694,377.84/1,041,566.76 = 658,919.28/x - Step 3: Cross multiply
694,377.84x = 1,041,566.76 × 658,919.28 - Step 4: Simplify right side
694,377.84x = 686,308,419,571.13 - Step 5: Solve for x
x = 686,308,419,571.13/694,377.84 - Step 6: Final answer
x = 988,378.92
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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.