Finding the Fourth Proportional to 786,376.18, 1,085,163.37 and 480,964.06
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Solution
The fourth proportional to 786,376.18, 1,085,163.37 and 480,964.06 is: 663,708.53
Step by Step Solution
- Step 1: Write the proportion equation
786,376.18 : 1,085,163.37 = 480,964.06 : x - Step 2: Convert to fraction form
786,376.18/1,085,163.37 = 480,964.06/x - Step 3: Cross multiply
786,376.18x = 1,085,163.37 × 480,964.06 - Step 4: Simplify right side
786,376.18x = 521,924,580,198.48 - Step 5: Solve for x
x = 521,924,580,198.48/786,376.18 - Step 6: Final answer
x = 663,708.53
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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.