Finding the Fourth Proportional to 2,000,198.79, 2,760,398.99 and 1,129,180.94
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Solution
The fourth proportional to 2,000,198.79, 2,760,398.99 and 1,129,180.94 is: 1,558,340.07
Step by Step Solution
- Step 1: Write the proportion equation
2,000,198.79 : 2,760,398.99 = 1,129,180.94 : x - Step 2: Convert to fraction form
2,000,198.79/2,760,398.99 = 1,129,180.94/x - Step 3: Cross multiply
2,000,198.79x = 2,760,398.99 × 1,129,180.94 - Step 4: Simplify right side
2,000,198.79x = 3,116,989,922,617.17 - Step 5: Solve for x
x = 3,116,989,922,617.17/2,000,198.79 - Step 6: Final answer
x = 1,558,340.07
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1.5x scale
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.