Finding the Fourth Proportional to 3,919,176.09, 5,878,193.90 and 1,222,874.01
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Solution
The fourth proportional to 3,919,176.09, 5,878,193.90 and 1,222,874.01 is: 1,834,133.09
Step by Step Solution
- Step 1: Write the proportion equation
3,919,176.09 : 5,878,193.90 = 1,222,874.01 : x - Step 2: Convert to fraction form
3,919,176.09/5,878,193.90 = 1,222,874.01/x - Step 3: Cross multiply
3,919,176.09x = 5,878,193.90 × 1,222,874.01 - Step 4: Simplify right side
3,919,176.09x = 7,188,290,539,936.17 - Step 5: Solve for x
x = 7,188,290,539,936.17/3,919,176.09 - Step 6: Final answer
x = 1,834,133.09
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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.