Finding the Fourth Proportional to 784,434.05, 1,177,281.69 and 405,465.94
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Solution
The fourth proportional to 784,434.05, 1,177,281.69 and 405,465.94 is: 608,524.86
Step by Step Solution
- Step 1: Write the proportion equation
784,434.05 : 1,177,281.69 = 405,465.94 : x - Step 2: Convert to fraction form
784,434.05/1,177,281.69 = 405,465.94/x - Step 3: Cross multiply
784,434.05x = 1,177,281.69 × 405,465.94 - Step 4: Simplify right side
784,434.05x = 477,347,622,690.28 - Step 5: Solve for x
x = 477,347,622,690.28/784,434.05 - Step 6: Final answer
x = 608,524.86
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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.