Finding the Fourth Proportional to 547,782.68, 755,934.90 and 306,106.88
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Solution
The fourth proportional to 547,782.68, 755,934.90 and 306,106.88 is: 422,424.59
Step by Step Solution
- Step 1: Write the proportion equation
547,782.68 : 755,934.90 = 306,106.88 : x - Step 2: Convert to fraction form
547,782.68/755,934.90 = 306,106.88/x - Step 3: Cross multiply
547,782.68x = 755,934.90 × 306,106.88 - Step 4: Simplify right side
547,782.68x = 231,396,873,722.11 - Step 5: Solve for x
x = 231,396,873,722.11/547,782.68 - Step 6: Final answer
x = 422,424.59
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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.