Finding the Fourth Proportional to 991,528.50, 1,368,425.97 and 589,120.50
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Solution
The fourth proportional to 991,528.50, 1,368,425.97 and 589,120.50 is: 813,055.59
Step by Step Solution
- Step 1: Write the proportion equation
991,528.50 : 1,368,425.97 = 589,120.50 : x - Step 2: Convert to fraction form
991,528.50/1,368,425.97 = 589,120.50/x - Step 3: Cross multiply
991,528.50x = 1,368,425.97 × 589,120.50 - Step 4: Simplify right side
991,528.50x = 806,167,791,659.39 - Step 5: Solve for x
x = 806,167,791,659.39/991,528.50 - Step 6: Final answer
x = 813,055.59
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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.