Finding the Fourth Proportional to 530,446.05, 732,034.87 and 288,716.94
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Solution
The fourth proportional to 530,446.05, 732,034.87 and 288,716.94 is: 398,439.89
Step by Step Solution
- Step 1: Write the proportion equation
530,446.05 : 732,034.87 = 288,716.94 : x - Step 2: Convert to fraction form
530,446.05/732,034.87 = 288,716.94/x - Step 3: Cross multiply
530,446.05x = 732,034.87 × 288,716.94 - Step 4: Simplify right side
530,446.05x = 211,350,866,917.91 - Step 5: Solve for x
x = 211,350,866,917.91/530,446.05 - Step 6: Final answer
x = 398,439.89
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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.