Finding the Fourth Proportional to 621,076.77, 931,812.08 and 221,708.97
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Solution
The fourth proportional to 621,076.77, 931,812.08 and 221,708.97 is: 332,633.75
Step by Step Solution
- Step 1: Write the proportion equation
621,076.77 : 931,812.08 = 221,708.97 : x - Step 2: Convert to fraction form
621,076.77/931,812.08 = 221,708.97/x - Step 3: Cross multiply
621,076.77x = 931,812.08 × 221,708.97 - Step 4: Simplify right side
621,076.77x = 206,591,095,381.81 - Step 5: Solve for x
x = 206,591,095,381.81/621,076.77 - Step 6: Final answer
x = 332,633.75
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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.