Finding the Fourth Proportional to 871,632.84, 1,202,722.38 and 489,586.44
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Solution
The fourth proportional to 871,632.84, 1,202,722.38 and 489,586.44 is: 675,555.74
Step by Step Solution
- Step 1: Write the proportion equation
871,632.84 : 1,202,722.38 = 489,586.44 : x - Step 2: Convert to fraction form
871,632.84/1,202,722.38 = 489,586.44/x - Step 3: Cross multiply
871,632.84x = 1,202,722.38 × 489,586.44 - Step 4: Simplify right side
871,632.84x = 588,836,568,332.53 - Step 5: Solve for x
x = 588,836,568,332.53/871,632.84 - Step 6: Final answer
x = 675,555.74
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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.