Finding the Fourth Proportional to 2,290,912.84, 3,161,467.08 and 1,272,317.56
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Solution
The fourth proportional to 2,290,912.84, 3,161,467.08 and 1,272,317.56 is: 1,755,802.32
Step by Step Solution
- Step 1: Write the proportion equation
2,290,912.84 : 3,161,467.08 = 1,272,317.56 : x - Step 2: Convert to fraction form
2,290,912.84/3,161,467.08 = 1,272,317.56/x - Step 3: Cross multiply
2,290,912.84x = 3,161,467.08 × 1,272,317.56 - Step 4: Simplify right side
2,290,912.84x = 4,022,390,081,245.93 - Step 5: Solve for x
x = 4,022,390,081,245.93/2,290,912.84 - Step 6: Final answer
x = 1,755,802.32
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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.