Finding the Fourth Proportional to 1,091,041.75, 1,636,620.95 and 343,146.07
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Solution
The fourth proportional to 1,091,041.75, 1,636,620.95 and 343,146.07 is: 514,737.45
Step by Step Solution
- Step 1: Write the proportion equation
1,091,041.75 : 1,636,620.95 = 343,146.07 : x - Step 2: Convert to fraction form
1,091,041.75/1,636,620.95 = 343,146.07/x - Step 3: Cross multiply
1,091,041.75x = 1,636,620.95 × 343,146.07 - Step 4: Simplify right side
1,091,041.75x = 561,600,045,356.44 - Step 5: Solve for x
x = 561,600,045,356.44/1,091,041.75 - Step 6: Final answer
x = 514,737.45
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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.