Finding the Fourth Proportional to 452,546.19, 678,818.68 and 115,587.20
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Solution
The fourth proportional to 452,546.19, 678,818.68 and 115,587.20 is: 173,380.65
Step by Step Solution
- Step 1: Write the proportion equation
452,546.19 : 678,818.68 = 115,587.20 : x - Step 2: Convert to fraction form
452,546.19/678,818.68 = 115,587.20/x - Step 3: Cross multiply
452,546.19x = 678,818.68 × 115,587.20 - Step 4: Simplify right side
452,546.19x = 78,462,751,936.97 - Step 5: Solve for x
x = 78,462,751,936.97/452,546.19 - Step 6: Final answer
x = 173,380.65
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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.