Finding the Fourth Proportional to 568,405.44, 784,405.98 and 313,756.74
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Solution
The fourth proportional to 568,405.44, 784,405.98 and 313,756.74 is: 432,987.87
Step by Step Solution
- Step 1: Write the proportion equation
568,405.44 : 784,405.98 = 313,756.74 : x - Step 2: Convert to fraction form
568,405.44/784,405.98 = 313,756.74/x - Step 3: Cross multiply
568,405.44x = 784,405.98 × 313,756.74 - Step 4: Simplify right side
568,405.44x = 246,112,663,121.31 - Step 5: Solve for x
x = 246,112,663,121.31/568,405.44 - Step 6: Final answer
x = 432,987.87
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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.