Finding the Fourth Proportional to 691,831.18, 1,037,660.91 and 186,431.68
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Solution
The fourth proportional to 691,831.18, 1,037,660.91 and 186,431.68 is: 279,624.38
Step by Step Solution
- Step 1: Write the proportion equation
691,831.18 : 1,037,660.91 = 186,431.68 : x - Step 2: Convert to fraction form
691,831.18/1,037,660.91 = 186,431.68/x - Step 3: Cross multiply
691,831.18x = 1,037,660.91 × 186,431.68 - Step 4: Simplify right side
691,831.18x = 193,452,866,721.63 - Step 5: Solve for x
x = 193,452,866,721.63/691,831.18 - Step 6: Final answer
x = 279,624.38
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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.