Finding the Fourth Proportional to 769,624.74, 1,061,990.13 and 425,414.18
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Solution
The fourth proportional to 769,624.74, 1,061,990.13 and 425,414.18 is: 587,020.70
Step by Step Solution
- Step 1: Write the proportion equation
769,624.74 : 1,061,990.13 = 425,414.18 : x - Step 2: Convert to fraction form
769,624.74/1,061,990.13 = 425,414.18/x - Step 3: Cross multiply
769,624.74x = 1,061,990.13 × 425,414.18 - Step 4: Simplify right side
769,624.74x = 451,785,655,012.09 - Step 5: Solve for x
x = 451,785,655,012.09/769,624.74 - Step 6: Final answer
x = 587,020.70
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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.