Finding the Fourth Proportional to 620,855.71, 931,935.11 and 550,230.19
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Solution
The fourth proportional to 620,855.71, 931,935.11 and 550,230.19 is: 825,922.71
Step by Step Solution
- Step 1: Write the proportion equation
620,855.71 : 931,935.11 = 550,230.19 : x - Step 2: Convert to fraction form
620,855.71/931,935.11 = 550,230.19/x - Step 3: Cross multiply
620,855.71x = 931,935.11 × 550,230.19 - Step 4: Simplify right side
620,855.71x = 512,778,825,232.15 - Step 5: Solve for x
x = 512,778,825,232.15/620,855.71 - Step 6: Final answer
x = 825,922.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.