Finding the Fourth Proportional to 324,653.20, 486,979.80 and 245,921.20
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Solution
The fourth proportional to 324,653.20, 486,979.80 and 245,921.20 is: 368,881.80
Step by Step Solution
- Step 1: Write the proportion equation
324,653.20 : 486,979.80 = 245,921.20 : x - Step 2: Convert to fraction form
324,653.20/486,979.80 = 245,921.20/x - Step 3: Cross multiply
324,653.20x = 486,979.80 × 245,921.20 - Step 4: Simplify right side
324,653.20x = 119,758,656,791.76 - Step 5: Solve for x
x = 119,758,656,791.76/324,653.20 - Step 6: Final answer
x = 368,881.80
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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.