Finding the Fourth Proportional to 1,137,992.22, 1,570,653.43 and 678,876.99
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Solution
The fourth proportional to 1,137,992.22, 1,570,653.43 and 678,876.99 is: 936,983.98
Step by Step Solution
- Step 1: Write the proportion equation
1,137,992.22 : 1,570,653.43 = 678,876.99 : x - Step 2: Convert to fraction form
1,137,992.22/1,570,653.43 = 678,876.99/x - Step 3: Cross multiply
1,137,992.22x = 1,570,653.43 × 678,876.99 - Step 4: Simplify right side
1,137,992.22x = 1,066,280,472,891.58 - Step 5: Solve for x
x = 1,066,280,472,891.58/1,137,992.22 - Step 6: Final answer
x = 936,983.98
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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.