Finding the Fourth Proportional to 769,912.84, 1,062,503.22 and 430,395.40
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Solution
The fourth proportional to 769,912.84, 1,062,503.22 and 430,395.40 is: 593,958.79
Step by Step Solution
- Step 1: Write the proportion equation
769,912.84 : 1,062,503.22 = 430,395.40 : x - Step 2: Convert to fraction form
769,912.84/1,062,503.22 = 430,395.40/x - Step 3: Cross multiply
769,912.84x = 1,062,503.22 × 430,395.40 - Step 4: Simplify right side
769,912.84x = 457,296,498,373.19 - Step 5: Solve for x
x = 457,296,498,373.19/769,912.84 - Step 6: Final answer
x = 593,958.79
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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.