Finding the Fourth Proportional to 2,135,428.76, 2,946,891.98 and 1,168,559.28
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Solution
The fourth proportional to 2,135,428.76, 2,946,891.98 and 1,168,559.28 is: 1,612,611.97
Step by Step Solution
- Step 1: Write the proportion equation
2,135,428.76 : 2,946,891.98 = 1,168,559.28 : x - Step 2: Convert to fraction form
2,135,428.76/2,946,891.98 = 1,168,559.28/x - Step 3: Cross multiply
2,135,428.76x = 2,946,891.98 × 1,168,559.28 - Step 4: Simplify right side
2,135,428.76x = 3,443,617,970,386.57 - Step 5: Solve for x
x = 3,443,617,970,386.57/2,135,428.76 - Step 6: Final answer
x = 1,612,611.97
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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.