Finding the Fourth Proportional to 568,000.91, 783,841.20 and 313,352.09
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Solution
The fourth proportional to 568,000.91, 783,841.20 and 313,352.09 is: 432,425.85
Step by Step Solution
- Step 1: Write the proportion equation
568,000.91 : 783,841.20 = 313,352.09 : x - Step 2: Convert to fraction form
568,000.91/783,841.20 = 313,352.09/x - Step 3: Cross multiply
568,000.91x = 783,841.20 × 313,352.09 - Step 4: Simplify right side
568,000.91x = 245,618,278,248.11 - Step 5: Solve for x
x = 245,618,278,248.11/568,000.91 - Step 6: Final answer
x = 432,425.85
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1.5x scale
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.