Finding the Fourth Proportional to 638,645.58, 881,337.87 and 352,175.94
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Solution
The fourth proportional to 638,645.58, 881,337.87 and 352,175.94 is: 486,006.64
Step by Step Solution
- Step 1: Write the proportion equation
638,645.58 : 881,337.87 = 352,175.94 : x - Step 2: Convert to fraction form
638,645.58/881,337.87 = 352,175.94/x - Step 3: Cross multiply
638,645.58x = 881,337.87 × 352,175.94 - Step 4: Simplify right side
638,645.58x = 310,385,992,824.85 - Step 5: Solve for x
x = 310,385,992,824.85/638,645.58 - Step 6: Final answer
x = 486,006.64
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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.