Finding the Fourth Proportional to 665,542.06, 918,891.41 and 393,697.26
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Solution
The fourth proportional to 665,542.06, 918,891.41 and 393,697.26 is: 543,564.49
Step by Step Solution
- Step 1: Write the proportion equation
665,542.06 : 918,891.41 = 393,697.26 : x - Step 2: Convert to fraction form
665,542.06/918,891.41 = 393,697.26/x - Step 3: Cross multiply
665,542.06x = 918,891.41 × 393,697.26 - Step 4: Simplify right side
665,542.06x = 361,765,028,386.05 - Step 5: Solve for x
x = 361,765,028,386.05/665,542.06 - Step 6: Final answer
x = 543,564.49
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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.