Finding the Fourth Proportional to 2,168,568.83, 2,992,642.70 and 1,201,715.26
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Solution
The fourth proportional to 2,168,568.83, 2,992,642.70 and 1,201,715.26 is: 1,658,376.87
Step by Step Solution
- Step 1: Write the proportion equation
2,168,568.83 : 2,992,642.70 = 1,201,715.26 : x - Step 2: Convert to fraction form
2,168,568.83/2,992,642.70 = 1,201,715.26/x - Step 3: Cross multiply
2,168,568.83x = 2,992,642.70 × 1,201,715.26 - Step 4: Simplify right side
2,168,568.83x = 3,596,304,379,345.81 - Step 5: Solve for x
x = 3,596,304,379,345.81/2,168,568.83 - Step 6: Final answer
x = 1,658,376.87
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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.