Finding the Fourth Proportional to 610,409.88, 842,375.79 and 338,489.28
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Solution
The fourth proportional to 610,409.88, 842,375.79 and 338,489.28 is: 467,120.84
Step by Step Solution
- Step 1: Write the proportion equation
610,409.88 : 842,375.79 = 338,489.28 : x - Step 2: Convert to fraction form
610,409.88/842,375.79 = 338,489.28/x - Step 3: Cross multiply
610,409.88x = 842,375.79 × 338,489.28 - Step 4: Simplify right side
610,409.88x = 285,135,174,646.53 - Step 5: Solve for x
x = 285,135,174,646.53/610,409.88 - Step 6: Final answer
x = 467,120.84
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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.