Finding the Fourth Proportional to 624,989.49, 862,538.58 and 353,107.32
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Solution
The fourth proportional to 624,989.49, 862,538.58 and 353,107.32 is: 487,318.09
Step by Step Solution
- Step 1: Write the proportion equation
624,989.49 : 862,538.58 = 353,107.32 : x - Step 2: Convert to fraction form
624,989.49/862,538.58 = 353,107.32/x - Step 3: Cross multiply
624,989.49x = 862,538.58 × 353,107.32 - Step 4: Simplify right side
624,989.49x = 304,568,686,380.41 - Step 5: Solve for x
x = 304,568,686,380.41/624,989.49 - Step 6: Final answer
x = 487,318.09
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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.