Finding the Fourth Proportional to 876,067.57, 1,208,970.99 and 488,878.87
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Solution
The fourth proportional to 876,067.57, 1,208,970.99 and 488,878.87 is: 674,651.58
Step by Step Solution
- Step 1: Write the proportion equation
876,067.57 : 1,208,970.99 = 488,878.87 : x - Step 2: Convert to fraction form
876,067.57/1,208,970.99 = 488,878.87/x - Step 3: Cross multiply
876,067.57x = 1,208,970.99 × 488,878.87 - Step 4: Simplify right side
876,067.57x = 591,040,371,453.98 - Step 5: Solve for x
x = 591,040,371,453.98/876,067.57 - Step 6: Final answer
x = 674,651.58
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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.