Finding the Fourth Proportional to 691,407.20, 1,037,110.80 and 192,771.20
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Solution
The fourth proportional to 691,407.20, 1,037,110.80 and 192,771.20 is: 289,156.80
Step by Step Solution
- Step 1: Write the proportion equation
691,407.20 : 1,037,110.80 = 192,771.20 : x - Step 2: Convert to fraction form
691,407.20/1,037,110.80 = 192,771.20/x - Step 3: Cross multiply
691,407.20x = 1,037,110.80 × 192,771.20 - Step 4: Simplify right side
691,407.20x = 199,925,093,448.96 - Step 5: Solve for x
x = 199,925,093,448.96/691,407.20 - Step 6: Final answer
x = 289,156.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.