Finding the Fourth Proportional to 811,688.96, 1,120,581.24 and 489,480.68
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Solution
The fourth proportional to 811,688.96, 1,120,581.24 and 489,480.68 is: 675,754.99
Step by Step Solution
- Step 1: Write the proportion equation
811,688.96 : 1,120,581.24 = 489,480.68 : x - Step 2: Convert to fraction form
811,688.96/1,120,581.24 = 489,480.68/x - Step 3: Cross multiply
811,688.96x = 1,120,581.24 × 489,480.68 - Step 4: Simplify right side
811,688.96x = 548,502,867,350.44 - Step 5: Solve for x
x = 548,502,867,350.44/811,688.96 - Step 6: Final answer
x = 675,754.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.