Finding the Fourth Proportional to 1,489,577.18, 2,232,616.16 and 689,167.98
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Solution
The fourth proportional to 1,489,577.18, 2,232,616.16 and 689,167.98 is: 1,032,942.50
Step by Step Solution
- Step 1: Write the proportion equation
1,489,577.18 : 2,232,616.16 = 689,167.98 : x - Step 2: Convert to fraction form
1,489,577.18/2,232,616.16 = 689,167.98/x - Step 3: Cross multiply
1,489,577.18x = 2,232,616.16 × 689,167.98 - Step 4: Simplify right side
1,489,577.18x = 1,538,647,570,825.48 - Step 5: Solve for x
x = 1,538,647,570,825.48/1,489,577.18 - Step 6: Final answer
x = 1,032,942.50
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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.