Finding the Fourth Proportional to 561,043.30, 774,245.91 and 306,401.98
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Solution
The fourth proportional to 561,043.30, 774,245.91 and 306,401.98 is: 422,838.09
Step by Step Solution
- Step 1: Write the proportion equation
561,043.30 : 774,245.91 = 306,401.98 : x - Step 2: Convert to fraction form
561,043.30/774,245.91 = 306,401.98/x - Step 3: Cross multiply
561,043.30x = 774,245.91 × 306,401.98 - Step 4: Simplify right side
561,043.30x = 237,230,479,830.90 - Step 5: Solve for x
x = 237,230,479,830.90/561,043.30 - Step 6: Final answer
x = 422,838.09
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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.