Finding the Fourth Proportional to 568,378.62, 784,368.90 and 313,729.74
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Solution
The fourth proportional to 568,378.62, 784,368.90 and 313,729.74 is: 432,950.58
Step by Step Solution
- Step 1: Write the proportion equation
568,378.62 : 784,368.90 = 313,729.74 : x - Step 2: Convert to fraction form
568,378.62/784,368.90 = 313,729.74/x - Step 3: Cross multiply
568,378.62x = 784,368.90 × 313,729.74 - Step 4: Simplify right side
568,378.62x = 246,079,851,061.09 - Step 5: Solve for x
x = 246,079,851,061.09/568,378.62 - Step 6: Final answer
x = 432,950.58
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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.