Finding the Fourth Proportional to 2,120,772.20, 2,926,578.06 and 1,153,906.28
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Solution
The fourth proportional to 2,120,772.20, 2,926,578.06 and 1,153,906.28 is: 1,592,343.02
Step by Step Solution
- Step 1: Write the proportion equation
2,120,772.20 : 2,926,578.06 = 1,153,906.28 : x - Step 2: Convert to fraction form
2,120,772.20/2,926,578.06 = 1,153,906.28/x - Step 3: Cross multiply
2,120,772.20x = 2,926,578.06 × 1,153,906.28 - Step 4: Simplify right side
2,120,772.20x = 3,376,996,802,344.22 - Step 5: Solve for x
x = 3,376,996,802,344.22/2,120,772.20 - Step 6: Final answer
x = 1,592,343.02
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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.