Finding the Fourth Proportional to 931,441.20, 1,397,703.99 and 391,658.41
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Solution
The fourth proportional to 931,441.20, 1,397,703.99 and 391,658.41 is: 587,715.60
Step by Step Solution
- Step 1: Write the proportion equation
931,441.20 : 1,397,703.99 = 391,658.41 : x - Step 2: Convert to fraction form
931,441.20/1,397,703.99 = 391,658.41/x - Step 3: Cross multiply
931,441.20x = 1,397,703.99 × 391,658.41 - Step 4: Simplify right side
931,441.20x = 547,422,522,374.06 - Step 5: Solve for x
x = 547,422,522,374.06/931,441.20 - Step 6: Final answer
x = 587,715.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.