Finding the Fourth Proportional to 723,622.68, 998,660.61 and 401,436.56
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Solution
The fourth proportional to 723,622.68, 998,660.61 and 401,436.56 is: 554,016.47
Step by Step Solution
- Step 1: Write the proportion equation
723,622.68 : 998,660.61 = 401,436.56 : x - Step 2: Convert to fraction form
723,622.68/998,660.61 = 401,436.56/x - Step 3: Cross multiply
723,622.68x = 998,660.61 × 401,436.56 - Step 4: Simplify right side
723,622.68x = 400,898,882,382.55 - Step 5: Solve for x
x = 400,898,882,382.55/723,622.68 - Step 6: Final answer
x = 554,016.47
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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.