Finding the Fourth Proportional to 790,610.76, 1,186,137.84 and 317,628.26
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Solution
The fourth proportional to 790,610.76, 1,186,137.84 and 317,628.26 is: 476,531.46
Step by Step Solution
- Step 1: Write the proportion equation
790,610.76 : 1,186,137.84 = 317,628.26 : x - Step 2: Convert to fraction form
790,610.76/1,186,137.84 = 317,628.26/x - Step 3: Cross multiply
790,610.76x = 1,186,137.84 × 317,628.26 - Step 4: Simplify right side
790,610.76x = 376,750,898,239.36 - Step 5: Solve for x
x = 376,750,898,239.36/790,610.76 - Step 6: Final answer
x = 476,531.46
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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.