Finding the Fourth Proportional to 639,737.20, 958,949.70 and 373,360.60
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Solution
The fourth proportional to 639,737.20, 958,949.70 and 373,360.60 is: 559,657.99
Step by Step Solution
- Step 1: Write the proportion equation
639,737.20 : 958,949.70 = 373,360.60 : x - Step 2: Convert to fraction form
639,737.20/958,949.70 = 373,360.60/x - Step 3: Cross multiply
639,737.20x = 958,949.70 × 373,360.60 - Step 4: Simplify right side
639,737.20x = 358,034,035,361.82 - Step 5: Solve for x
x = 358,034,035,361.82/639,737.20 - Step 6: Final answer
x = 559,657.99
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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.