Finding the Fourth Proportional to 568,290.84, 784,239.75 and 313,640.21
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Solution
The fourth proportional to 568,290.84, 784,239.75 and 313,640.21 is: 432,822.59
Step by Step Solution
- Step 1: Write the proportion equation
568,290.84 : 784,239.75 = 313,640.21 : x - Step 2: Convert to fraction form
568,290.84/784,239.75 = 313,640.21/x - Step 3: Cross multiply
568,290.84x = 784,239.75 × 313,640.21 - Step 4: Simplify right side
568,290.84x = 245,969,115,959.15 - Step 5: Solve for x
x = 245,969,115,959.15/568,290.84 - Step 6: Final answer
x = 432,822.59
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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.