Finding the Fourth Proportional to 412,509.08, 618,764.13 and 112,992.26
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Solution
The fourth proportional to 412,509.08, 618,764.13 and 112,992.26 is: 169,488.52
Step by Step Solution
- Step 1: Write the proportion equation
412,509.08 : 618,764.13 = 112,992.26 : x - Step 2: Convert to fraction form
412,509.08/618,764.13 = 112,992.26/x - Step 3: Cross multiply
412,509.08x = 618,764.13 × 112,992.26 - Step 4: Simplify right side
412,509.08x = 69,915,554,361.81 - Step 5: Solve for x
x = 69,915,554,361.81/412,509.08 - Step 6: Final answer
x = 169,488.52
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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.