Finding the Fourth Proportional to 855,286.20, 1,283,214.30 and 286,723.50
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Solution
The fourth proportional to 855,286.20, 1,283,214.30 and 286,723.50 is: 430,180.79
Step by Step Solution
- Step 1: Write the proportion equation
855,286.20 : 1,283,214.30 = 286,723.50 : x - Step 2: Convert to fraction form
855,286.20/1,283,214.30 = 286,723.50/x - Step 3: Cross multiply
855,286.20x = 1,283,214.30 × 286,723.50 - Step 4: Simplify right side
855,286.20x = 367,927,695,346.05 - Step 5: Solve for x
x = 367,927,695,346.05/855,286.20 - Step 6: Final answer
x = 430,180.79
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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.